Question

if cos theta+cos^2 theta=1 then sin^2theta+sin^4 theta?​

Answer 1

Step-by-step explanation:

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Answer 2

Given :

cos ø + cos² ø = 1

To prove :

sin²ø + sin^4ø

Solution :

True,

➸ As cos ø + cos² ø = 1

➸ cos ø = 1 - cos²ø = sin² ø

➸ so, cos ø = sin²ø

➸ so sin^4ø = cos²ø

➸ sin²ø + sin^4ø

➸ sin²ø + cos²ø

➸ 1

➸ sin²ø + sin^4ø = 1