Question

pls... find the ans for the following 3quesrions...will mark d best ans as brainliest..

Answer 1

Answer to 6

sinA + sin^2(A) =1

sinA =1- sin^2 (A)

sinA =cos^2 A

co^4 (A) =sin^2 (A)

cos^2 (A) = cos^4 (A) =sin A )+ sin^2(A)=1