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Trigonometry Proofs Involving Half and Double Angles

78,192 views

ProfRobBob

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

99%
  • 17:28 / 17:35

Speech Rate:

  • 145 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Special thanks to The Free Dictionary for providing us with the information used in this web page

Video Vocabulary

algebra

/ˈaljəbrə/

algebra
noun

part of mathematics in which letters and other general symbols are used to represent numbers and quantities.

written

/rīt/

written
adjective other verb

Expressed using writing. To invent or create a computer program. To create a song or piece of music.

squared

/skwerd/

squared
adjective verb

(Of number) multiplied by itself (e.g. 2 x 2). To make something balance or be equal.

identities

/ˌīˈden(t)ədē/

identities
noun other

fact of being particular person or thing. Collections of qualities that makes a person.

dealing

/ˈdēliNG/

dealing
noun verb

business relations or transactions. To give out (cards, etc.) to; distribute.

working

/ˈwərkiNG/

working
adjective noun verb

having paid employment. action of doing work. To bring into a specific state of success.

examples

/iɡˈzampəl/

examples
noun other verb

thing characteristic of its kind. Things, people, which represent a category. be illustrated or exemplified.

welcome - welcome

/ˈwelkəm/

welcome
adjective exclamation noun verb

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. greet someone arriving in polite or friendly way.

something

/ˈsəmˌTHiNG/

something
adverb pronoun

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

formula

/ˈfôrmyələ/

formula
noun

mathematical relationship in symbols.

happens

/ˈhapən/

happens
verb

To take place or occur.

cotangent

/kōˈtanjənt/

cotangent
noun other

(in right-angled triangle) ratio of side other than hypotenuse adjacent to particular acute angle. Ratio of the adjacent to the opposite side of a right-angled triangle.

hopefully

/ˈhōpfəlē/

hopefully
adverb

In a manner wishing something to happen.

denominators

/dəˈnäməˌnādər/

denominators
noun other

number below line in vulgar fraction. Bottom number in a fraction.

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