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Wittaler [7]
3 years ago
5

CosX sec^2X tanX - cosX tan^3X = sinX

Mathematics
1 answer:
ch4aika [34]3 years ago
4 0
\cos x\sec^2x\tan x-\cos x\tan^3x=\cos x\tan x\left(\sec^2x-\tan^2x\right)=\sin x\left(\sec^2x-(\sec^2x-1)\right)=\sin x
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