Question

If sinθ+sin2θ=1 , then cos2θ+cos4θ= what​

Answer 1

Answer:

1

Explanation:

If sinθ + sin²θ = 1,

then sinθ = 1−sin²θ = cos²θ

Sub the value of cos²θ, we get

cos²θ + (cos ²θ)²=1

Answer 2

Answer:

If sinθ + sin2θ = 1 then cos2θ + cos4θ is equal to. 0. -1.