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Prove the trigonometric identity $\cot\left(x\right)\sec\left(x\right)=\csc\left(x\right)$

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$\cot\left(x\right)\cdot\sec\left(x\right)=\csc\left(x\right)$

Related formulas:

1. See formulas

Time to solve it:

~ 0.04 s (SnapXam)