Question

The derivative of $f (cot x)$ with respect to $g (cosec x)$ at $x=\frac{π}{4}$ (where $f'(1)=2.g'(\sqrt2)=4$) is:

• A. $\sqrt{2}$
• B. 1
• C. $\frac{1}{\sqrt{2}}$
• D. $\frac{1}{2\sqrt{2}}$

Answer 1

Answer: (C)

$\frac{1}{\sqrt{2}}$

Answer 2

The correct option is(C):$\frac{1}{\sqrt{2}}$