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11-08-2020
Mathematics

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Cot^2x•sec^2x convert each of these into sine and cosine and simplify

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Аноним Аноним

11-08-2020

[tex] \cot(x)=\frac{\cos x}{\sin x} [/tex]

$\sec x=\frac1{\cos x}$

$\therefore \cot^2x\cdot\sec^2x= \frac{\cos^2x}{\sin^2x}\frac{1}{\cos^2x}=\frac{1}{\sin^2x}$

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