Question

the most general value of theta satisfying the equation sin theta = sin a and cos theta = cos a is

Answer 1

Answer:

Correct option is

C

nπ+α

We have given that

sinθ=sinα−−−−(i)

cosθ=cosα−−−−(ii)

On dividing (i) and (ii) , we get

⇒

cosθ

sinθ

=

cosα

sinα

⇒tanθ=tanα

∴θ=nπ+α

Answer 2

Answer:

cos theta is equal to adjesent by hypotunuse is formula of cos theta