If $f(x) = |\cos x - \sin x|$, then $f'\left(\frac{\pi}{6}\right)$ is equal to?

Question

$-\frac{1}{2}(1+\sqrt{3})$

$\frac{1}{2}(1+\sqrt{3})$

$-\frac{1}{2}(1-\sqrt{3})$

$\frac{1}{2}(1-\sqrt{3})$

Please login to view the detailed solution steps...