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05:24

Everything Tennis Pro Garbiñe Muguruza Eats in…

14922

B1 Intermediate
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06:47

Polyglots Aren't Real

35916

A2 Basic
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05:07

Chain rule | Derivative rules | AP Calculus AB…

5

B1 Intermediate US
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10:19

Net electric field from multiple charges in 2D…

9

B1 Intermediate US
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12:36

Electric field direction | Electric charge, field,…

3

A2 Basic US
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13:46

Electric field definition | Electric charge, field,…

7

A2 Basic US
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11:15

Electric potential at a point in space | Physics…

7

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11:45

Triboelectric effect and charge | Physics | Khan…

6

B1 Intermediate US
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03:18

Proof of the derivative of cos(x) | Derivative…

2

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05:07

Proof: d/dx(sqrt(x)) | Taking derivatives | Differential…

4

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06:42

Justifying the power rule | Derivative rules |…

2

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11:39

Proof: Differentiability implies continuity |…

1

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04:28

Derivatives of sec(x) and csc(x) | Derivative…

6

B1 Intermediate US
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04:38

Derivatives of tan(x) and cot(x) | Derivative…

5

B2 High-Intermediate US
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06:43

Differentiating rational functions | Derivative…

3

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05:51

Worked example: Quotient rule with table | Derivative…

2

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03:52

Quotient rule | Derivative rules | AP Calculus…

3

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03:10

Worked example: Product rule with mixed implicit…

2

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03:08

Worked example: Product rule with table | Derivative…

3

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04:28

Product rule example

2

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02:40

Product rule | Derivative rules | AP Calculus…

6

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02:03

Derivative of ln(x) | Advanced derivatives | AP…

4

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03:02

Derivative of __ | Advanced derivatives | AP Calculus…

4

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05:14

Worked example: Derivatives of sin(x) and cos(x)…

2

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03:41

Derivatives of sin(x) and cos(x) | Derivative…

2

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04:42

Tangents of polynomials | Derivative rules | AP…

3

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04:48

Negative powers differentiation | Derivative rules…

3

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06:39

Differentiating polynomials example | Derivative…

3

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09:00

Basic derivative rules: table | Derivative rules…

4

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09:53

Differentiating polynomials | Derivative rules…

2

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04:23

Power rule (with rewriting the expression) | AP…

2

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03:54

Power rule | Derivative rules | AP Calculus AB…

2

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06:22

Differentiability at a point: algebraic (function…

3

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05:02

Differentiability at a point: algebraic (function…

3

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05:39

Differentiability at a point: graphical | Derivatives…

2

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09:38

Differentiability and continuity | Derivatives…

56

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05:56

Estimating derivatives | Derivatives introduction…

3

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11:05

The derivative of f(x)=x^2 for any x | Taking…

2

B1 Intermediate US
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08:28

Calculating slope of tangent line using derivative…

3

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05:17

Formal and alternate form of the derivative example…

3

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05:45

Formal and alternate form of the derivative for…

2

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04:53

Formal and alternate form of the derivative |…

4

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15:43

Derivative as slope of a tangent line | Taking…

2

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07:33

The derivative & tangent line equations | Derivatives…

3

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06:10

Derivative as slope of curve | Derivatives introduction…

2

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05:17

Secant lines & average rate of change | Derivatives…

3

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07:16

Derivative as a concept | Derivatives introduction…

3

B1 Intermediate US
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09:07

Newton, Leibniz, and Usain Bolt | Derivatives…

3

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03:26

Khan Academy in the classroom | Limits and continuity…

4

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08:30

Formal definition of limits Part 4: using the…

4

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06:59

Epsilon-delta definition of limits

4

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06:06

Formal definition of limits Part 2: building the…

4

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03:36

Formal definition of limits Part 1: intuition…

3

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03:46

Justification with the intermediate value theorem:…

5

B1 Intermediate US
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05:29

Justification with the intermediate value theorem:…

5

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06:43

Intermediate value theorem example | Existence…

2

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08:05

Intermediate value theorem | Existence theorems…

6

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03:37

Limits at infinity of quotients with square roots…

3

B1 Intermediate US
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05:14

Limits at infinity of quotients with square roots…

2

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04:33

Limits at infinity of quotients (Part 2) | Limits…

9

B2 High-Intermediate US
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04:07

Limits at infinity of quotients (Part 1) | Limits…

4

A2 Basic US
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03:46

Functions with same limit at infinity | Limits…

4

B1 Intermediate US
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02:46

Introduction to limits at infinity | Limits and…

6

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06:16

Analyzing unbounded limits: mixed function | Limits…

1

A2 Basic US
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05:03

Analyzing unbounded limits: rational function…

3

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04:14

Infinite limits and asymptotes | Limits and continuity…

7

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04:30

Introduction to infinite limits | Limits and continuity…

4

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05:20

Fancy algebra to find a limit and make a function…

4

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04:57

Defining a function at a point to make it continuous…

3

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04:22

Functions continuous at specific x-values | Limits…

2

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03:17

Functions continuous on all real numbers | Limits…

4

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09:00

Continuity over an interval | Limits and continuity…

1

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04:03

Analyzing functions for discontinuities (discontinuity…

2

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03:59

Analyzing functions for discontinuities (continuous…

4

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07:19

Worked example: Continuity at a point | Limits…

3

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08:16

Continuity at a point | Limits and continuity…

3

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07:16

Types of discontinuities | Limits and continuity…

42

B1 Intermediate US
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04:05

Limit of (1-cos(x))/x as x approaches 0 | Derivative…

4

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09:16

Limit of sin(x)/x as x approaches 0 | Derivative…

113

C1 Advanced US
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07:11

Squeeze theorem or sandwich theorem | Limits |…

3

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12:30

Strategy in finding limits | Limits and continuity…

1

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10:31

Trig limit using double angle identity | Limits…

3

B2 High-Intermediate US
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07:02

Trig limit using pythagorean identity | Limits…

17

B2 High-Intermediate US
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09:32

Limits by rationalizing | Limits and continuity…

2

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05:44

Limits by factoring | Limits and continuity |…

0

A2 Basic US
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06:20

Limit at a point of discontinuity

7

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03:49

Limits of piecewise functions | Limits and continuity…

9

A2 Basic US
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06:06

Limits of trigonometric functions | Limits and…

12

B2 High-Intermediate US
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02:14

Undefined limits by direct substitution | Limits…

3

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02:07

Limits by direct substitution | Limits and continuity…

4

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03:25

Limits of composite functions: external limit…

6

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04:17

Limits of composite functions: internal limit…

6

A2 Basic US
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03:22

Theorem for limits of composite functions: when…

3

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03:13

Theorem for limits of composite functions | Limits…

2

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04:13

Limits of combined functions: piecewise functions…

1

A2 Basic US
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04:09

Limits of combined functions | Limits and continuity…

2

A2 Basic US
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05:08

Limit properties | Limits and continuity | AP…

3

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06:20

One-sided limits from tables | Limits and continuity…

3

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03:24

Estimating limits from tables | Limits and continuity…

5

A2 Basic US
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04:27

Approximating limits using tables | Limits and…

2

A2 Basic US
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05:03

Connecting limits and graphical behavior | Limits…

3

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02:27

One-sided limits from graphs: asymptote | Limits…

2

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09:11

One-sided limits from graphs | Limits | Differential…

5

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06:01

Limits from graphs | Limits and continuity | AP…

7

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03:08

Why We Go Off People Who Like Us

285408

B1 Intermediate UK
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12:59

Inhaling and exhaling | Respiratory system physiology…

4

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09:36

| Respiratory system physiology |

56

B1 Intermediate US
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11:21

Great Glands - Your Endocrine System: CrashCourse…

133

B2 High-Intermediate US
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10:58

Map of Computer Science

211

B1 Intermediate US
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04:18

NBA Star Aaron Gordon Is a Slam Dunk

6759

A2 Basic US
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23:11

Conformity - Mind Field (Ep 2)

26

B1 Intermediate
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07:00

So... I Was On Ellen??? | Tyler Oakley

485

A2 Basic US
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02:26

Oh, Snap(chat)!

15935

A2 Basic US
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02:54

艾倫秀The Ellen Show | 當艾倫遇上前法國第一夫人下集（中英字幕）

1848

A2 Basic US
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04:01

【艾倫秀】艾倫幫超可愛雙胞胎《左左右右》慶生 (It's Zony and Yony's Birthday!)

1128

A1 Basic
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04:23

艾倫秀The Ellen Show | 當艾倫遇上前法國第一夫人上集（中英字幕）

669

A2 Basic
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02:44

Hashtags: #ILostABet

6640

B1 Intermediate US
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03:05

Hashtags: #MyKidIsWeird

18564

B1 Intermediate US
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08:48

White House to Be Disinfected When Trump Leaves…

8

B1 Intermediate
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10:33

Trump Prepares for His Debate Against Vice President…

5

B1 Intermediate
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03:12

Ellen's Going on 'The Tonight Show'

3138

A2 Basic US
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08:05

Tonight Showbotics: Snakebot, Sophia, eMotion…

8459

B1 Intermediate US
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03:34

Donald Trump Clarifies Megyn Kelly Comment

8435

B2 High-Intermediate US
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08:10

Trump Fires His Lawyer for Wild Conspiracy Theory…

5

B1 Intermediate
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06:51

Trump Fails to Condemn White Supremacists at Debate…

9

B1 Intermediate
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05:22

Trump Is 'Out of His Mind' After Violent D.C.…

5

B2 High-Intermediate
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07:25

The Tonight Show Seinfeld Challenge

8

A2 Basic
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01:35

Tonight Show Leaderboard 2020

1

B2 High-Intermediate
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08:47

Trump’s Entire Impeachment Legal Team Quits |…

16

B2 High-Intermediate
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03:51

Hashtags: #MyDrunkStory

8656

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02:53

Hashtags: #MomQuotes

6170

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06:02

【TED-Ed】How life begins in the deep ocean - Tierney…

1626

B2 High-Intermediate
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04:38

Ellen Scares Jimmy Fallon

22404

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05:28

【TED-Ed】How life came to land - Tierney Thys

765

B2 High-Intermediate
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04:57

The mysterious origins of life on Earth - Luka…

7292

B2 High-Intermediate US
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04:34

What is dust made of? - Michael Marder

34094

B2 High-Intermediate US
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10:54

Why Positive Thinking is Bad for You

27550

B1 Intermediate US
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03:25

Memorable Monologue: Cup Sizes

71014

A2 Basic US

yukang920108

未來我可以把英文當母語

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