Using the Sum and Difference Identities for Sine, Cosine and Tangent, Ex 2

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  1. patrickJMT
  2. math
  3. trigonometry
  4. precalculus
  5. sine
  6. cosine
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Комментарии
Автор

Man I swear you teach better than college math instructors. Some of them can't teach, not saying they are dumb cause they not, but some just don't know the method of teaching.

aznpride
Автор

How to find the sum and difference identity for sec?

cdkid
Автор

you just do it like you would for cosine and then you flip the answer (the numerator becomes denominator and vice versa)!

meghabyte