Question

If sin² θ = 1/2 then cos²θ​

Answer 1

Answer:

pta ni n ...............

Answer 2

Answer:

We know that

sin²x+cos²x=1

cos²x=1-sin²x

sin²x=1/2 (Given)

cos²x= 1-(1/2)²

cos²x= 1-1/4

cos²x=4-1/4

cos²x=3/4

here you can put x=theta