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asdfasdfasdfasdfasdf1

  • 3 years ago

how does sin^2(x) = (1-cos(2x))/2?

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  1. CliffSedge
    • 3 years ago
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    Do you need related identities or an actual proof?

  2. estudier
    • 3 years ago
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    Use double angle formula to expand cos 2x

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