eillandria eillandria
  • 25-11-2019
  • Mathematics
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Prove -1 - cos^2 x = sin^2 x​

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Lidpras
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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