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Formulas for Trigonometric Functions: Sum/Difference, Double/Half-Angle, Prod-to-Sum/Sum-to-Prod

49,516 views

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

89%
  • 8:26 / 9:28

Speech Rate:

  • 147 wpm - Conversational

Category:

  • Education

Intro:

Video Vocabulary

/t(y)o͞oˈtôrēəl/

adjective noun

relating to tutor or tutor's tuition. period of tuition given by university or college tutor.

/ˌderəˈvāSH(ə)n/

noun other

action of deriving something from source. Sources or origins from which some things derives.

/ˈvaly(o͞o)əb(ə)l/

adjective noun

Being worth a lot of money. thing that is of great worth,.

/inˈsted/

adverb

as alternative or substitute.

/ˈfəNG(k)SH(ə)n/

noun other verb

activity natural to or purpose of person or thing. What some things are intended to be used for; purpose. operate in particular way.

noun verb

group acting together commercially. To mix several things together to form one thing.

/ˈpräbəblē/

adverb

That is likely to happen or be true.

/prəˈsīs/

adjective

(Of a time, place, quality) exact.

/ˈdif(ə)rəns/

noun verb

Not of the same kind; unlike other things. alter coat of arms.

/ˈfôrmyələ/

noun other

mathematical relationship in symbols. Plans, rules or methods for doing or making some things.

/ˈkwôrdər/

noun verb

25 cents. To give a soldier a place to live for a short time.

/twelfTH/

number other

constituting number twelve in sequence. 1/12s.

/ˈməltəˌplī/

verb

To increase in number by reproducing/having babies.

/imˈpôrtnt/

adjective

of great significance or value.

/ˈmeməˌrīz/

verb

commit to memory.

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