kaylalee79 kaylalee79

15-04-2020
Mathematics

contestada

write cos 10 in terms of sine
a. sin 10
b. sin 20
c. sin 170
d. sin 80

Respuesta :

PollyP52 PollyP52

15-04-2020

Answer:

d. sin 80.

Step-by-step explanation:

Use the identity cos x = sin (90-x).

So cos 10 = sin(90 - 10)

= sin 80.

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