On the possibility of trigonometric proofs of the Pythagorean theorem - Jason Zimba

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    On the possibility of trigonometric proofs of the Pythagorean theorem - Jason Zimba​

    The identity cos^2x + sin^2x = 1 can be derived independently of the Pythagorean theorem, despite common beliefs to the contrary.

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    LTTK CTV, 9/10/19
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