Question

Find the derivative of cos x from first principal.​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Hi mate here is the answer:-

Also,

$\frac{d}{dx} {x}^{n} = {nx}^{n - 1}$

$\frac{d}{dx} sin \: x = cos \: x$

$\frac{d}{dx} cos \: x = - sin \: x$

$\frac{d}{dx} tan \: x = {sec}^{ {}^{2} } x$

$\frac{d}{dx} sec \: x = \sec \: x \: tan \: x$

Hope it helps you ❣️☑️