Question

.If sinA + sin²A =1, then what is the value of expression ( cos²A+cos⁴A) is:​

Answer 1

Answer:

the answer is 4 , pls mark me as the brainliest. Plus est en vous.

Answer 2

Answer:

1

Step-by-step explanation:

sin a= 1-sin^2a

Sina =cos^2a

cos^4a =sin^2a(squaring both sides)

cos^4a+cos^2a=sin^2a+Sina (adding above two equations)

=1(given)

hope it helps.

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