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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

In mathematics, being less than zero. no. Reply to a question or statement that means 'no'. refuse to accept.

derivative

/dəˈrivədiv/

adjective noun

Not from original ideas; from somewhere else. thing derived from another source.

previous

/ˈprēvēəs/

adjective

existing or occurring before in time or order.

intuition

/ˌint(y)o͞oˈiSH(ə)n/

noun

Natural ability to guess or feel things.

encourage

/inˈkərij/

verb

To increase the chance of something happening.

showing

/ˈSHōiNG/

noun verb

action of showing something, or fact of being shown. To lead someone somewhere; point them to something.

argument

/ˈärɡyəmənt/

noun

angry exchange of views.

tangent

/ˈtanjənt/

adjective noun

(of line or plane) touching, but not intersecting, curve or curved surface. Line or curve meeting another line or curve.

respect

/rəˈspekt/

noun verb

feeling of deep admiration for person or thing elicited by their abilities or achievements. To think very highly of another person.

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 act in a false manner to mislead others.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

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