$\mathop {\lim }\limits_{x \to 0} \frac{\sin(mx)}{\tan(nx)} = $

$\mathop {\lim }\limits_{x \to 0} \frac{{1 - \cos x}}{{{{\sin }^2}x}} = $

$\lim _{x \rightarrow 0} \frac{(1-\cos 2 x)(3+\cos x)}{x \tan 4 x} = $

$\lim _{x \rightarrow 0} \frac{x \cot 4x}{\sin ^2 x \cdot \cot ^2(2x)}$ का मान ज्ञात कीजिए।

$\lim _{x \rightarrow 0^{-}} \frac{\sqrt{\frac{1}{2}(1-\cos ^2 x)}}{x}$ का मान ज्ञात कीजिए।

$\lim _{x \rightarrow 0} \frac{8}{\sin ^8 x} \left\{1-\cos \left(\frac{x^2}{2}\right)-\cos \left(\frac{x^2}{4}\right)+\cos \left(\frac{x^2}{2}\right) \cos \left(\frac{x^2}{4}\right)\right\} =$