Question

Find the value for Sin690°

Answer 1

Answer:

Hey dude.......

sin690∘ = sin(720∘ − 30∘), = sin(4π − π/6) .

But,

sin(4π − θ) = −sinθ .

.°. Sin 690° = -sin 30° = -1/2

So, ans. Is 0.5

Hope its helpful!!!

Følløw mē✌❤✌