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4-sin-2-x-4-cos-2-x-




Question Number 21083 by chernoaguero@gmail.com last updated on 12/Sep/17
4^(sin^2 x) + 4^(cos^2 x)  =
$$\mathrm{4}^{\mathrm{sin}^{\mathrm{2}} {x}} +\:\mathrm{4}^{\mathrm{cos}^{\mathrm{2}} {x}} \:= \\ $$

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