Question

If sina+sin^2a=1 then find the value of cos^2a+cos^4a

Answer 1

Answer:

cos^2a+cos^4a=1

Step-by-step explanation:

sin^2A+cos^2A=1 by definition

sin^2A+sin A = 1 by given data

so, cos^2A = sin A

cos^2a+cos^4a

cos^2A+ (cos^2A * cos^2A)

sin A+(sin A* sin A)

sin A + sin^2A which is equal to 1 as given.

so the answer is 1

Answer 2

1

...................