Difference between revisions of "Pythagorean identity for sin and cos"
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(Created page with "<div class="toccolours mw-collapsible mw-collapsed"> <strong>Theorem: (Pythagorean identity)</strong> The following formula holds for all $x$: $$\sin^2(x)+\cos^2(x)=1.$$ <div...") |
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| − | <strong>Theorem: (Pythagorean identity)</strong> The following formula holds for all $x$: | + | <strong>[[Pythagorean identity for sin and cos|Theorem]]: (Pythagorean identity)</strong> The following formula holds for all $x$: |
$$\sin^2(x)+\cos^2(x)=1.$$ | $$\sin^2(x)+\cos^2(x)=1.$$ | ||
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Revision as of 18:28, 1 December 2015
Theorem: (Pythagorean identity) The following formula holds for all $x$: $$\sin^2(x)+\cos^2(x)=1.$$
Proof: █
