A viewer wanted me to try the trig equation involving tangent: tan(1/x)=1/tan(x). This seems to be a fake trig identity but it turns out to be a very interesting trig equation. We will use some trig identities to simplify this equation and also the quadratic formula to actually solve this equation.
Try this precalculus challenge sin(x)=sin(pi*x) [ Ссылка ]

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