Question

If sin θ +sin² θ=1, then cos²θ + cos⁴ θ=______. ​

Answer 1

Answer:

1 is the answer

Step-by-step explanation:

sin+sin^2=1

sin=1-sin^2

sin=cos^2............................(1)

using eq (1)

cos^2+cos^4=sin+sin^2

=1

therefore the value is 1