Question

sin A+sin^2A =1 to prove cos^2A + sin ^4 A =1​

Answer 1

Answer:

Step-by-step explanation:

cos A+cos^2 A=1 ————(1)

cos A =1-cos^2 A

[sin^2 A=1- cos^2 A]

cos A= sin^2 A ———-(2)

Substitute value of cos A in Eq. (1)

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

sin^2 A + sin^4 A=1 [Proved]

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Answer 2

Answer:

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