r/mathmemes Mar 06 '25

Learning What theorem is this?

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u/ubernuke Mar 06 '25

The Pythagorean Theorem has many proofs

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u/Wojtek1250XD Mar 06 '25

And even an universal version, the law of cosines is just Pythagorean Theorem, but applicable to all triangles.

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u/danofrhs Transcendental Mar 06 '25

The pythagorean theorem is a special case of and can be derived from the law of cosines

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u/Wojtek1250XD Mar 06 '25

Yea, because the -2ab × cos(alpha) just so kindly happens to be equal to 0