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Proof of the derivative of cos(x) | Derivative rules | AP Calculus AB | Khan Academy

14,305 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

88%
  • 2:54 / 3:17

Speech Rate:

  • 196 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

negative

/ˈneɡədiv/

adjective exclamation noun verb

Focusing on the bad aspects; pessimistic. no. Image on camera film used to make a photo. refuse to accept.

derivative

/dəˈrivədiv/

adjective noun

imitative of another's work. thing derived from another source.

previous

/ˈprēvēəs/

adjective

Existing or happening before the present time.

intuition

/ˌint(y)o͞oˈiSH(ə)n/

noun

Natural ability to guess or feel things.

encourage

/inˈkərij/

verb

give support, confidence, or hope to.

showing

/ˈSHōiNG/

noun verb

Occasion when something can be seen, e.g. a movie. To be easily seen or displayed.

argument

/ˈärɡyəmənt/

noun

A presentation of reasons for or against an idea.

tangent

/ˈtanjənt/

adjective noun

(of line or plane) touching, but not intersecting, curve or curved surface. straight line or plane that touches curve or curved surface at point.

respect

/rəˈspekt/

noun verb

feeling of deep admiration for person or thing elicited by their abilities or achievements. admire person or thing deeply, as result of their abilities or achievements.

involved

/inˈvälvd/

adjective verb

difficult to understand. To have or be included as a part of something.

assuming

/əˈso͞omiNG/

adjective conjunction verb

arrogant or presumptuous. used for purpose of argument to indicate premise on which statement can be based. To believe, based on the evidence; suppose.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

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