eillandria eillandria

25-11-2019
Mathematics

contestada

Prove -1 - cos^2 x = sin^2 x

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Lidpras Lidpras

01-12-2019

sin^2(x) + cos^2(x) = 1

sin^2(x) = 1 - cos^2(x)

1 - cos^2(x) = sin^2(x)

- 1 - cos^2(x) = sin^2(x) is proven incorrect.

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