Find the derivative of each of the following from the first principle.
(i) `sin 2x` , (ii) `cos 3x` , (iii) `tan 5x`

Explanation

To find the derivatives of the functions \( \sin 2x \), \( \cos 3x \), and \( \tan 5x \) using the first principle of derivatives, we will follow the formula:

\[ f'(x) = \lim_{h \to 0} \frac{f(x+h) - f(x)}{h} \]

### (i) Derivative of \( \sin 2x \)

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