Asked by Jaime
I need to the steps to get (1-sinx)(1+sinx)=cos^2 x
Answers
Answered by
Reiny
(1+sinx)=cos^2 x
1 + sinx = (1 - sin^2 x)
(1 + sinx) = (1+sinx)(1-sinx)
divide both sides by 1 + sinx
1 = 1 - sinx
or
sinx = 0
easy to solve if you have to solve
1 + sinx = (1 - sin^2 x)
(1 + sinx) = (1+sinx)(1-sinx)
divide both sides by 1 + sinx
1 = 1 - sinx
or
sinx = 0
easy to solve if you have to solve
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