Question

If

sinA + sin ^2 A = 1

then the value of the expression
cos^2 + cos ^4 A ​

Answer 1

Step-by-step explanation:

sin a= 1- sin^2a

sin a = cos ^2a

so replace the values

sina + sin ^ 2a

we already know that sin a+ sin ^ 2 a= 1

so the ans is 1

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