Math, asked by jayatheja2018, 1 year ago

If sin A+sin^2 A=1,prove cos^2 A+cos^4 A=1

Answers

Answered by krishnaria
4
hope it's helpful to u. ☺☺
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Answered by rithink604
0

 GIVEN:-

             sin\theta+sin^{2}theta=1\\ \\sin\theta=1-sin^{2}\theta

     To.Prove:-

                 cos^2 \theta+cos^4 \theta=1

     Proof:-

               sin\theta=1-sin^{2}\theta\\

                   ∴         sin\theta=cos^{2}\theta

∴⇒cos^2 A+cos^4 A\\

=si\theta+sin^{2}\theta\\

=1

HENCE PROVED.............

         hope it helps......✔✔✌

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