$\lim_{x → 0} \frac{1}{x} \left ( \sqrt{1 + x} - \sqrt{1 - x} \right ) = ?$        

0.  $\lim_{x \to 0} \left ( 1 + 5 x \right )^{\frac{1}{3 x}}$ এর মান নিচের কোনটি ?

$\displaystyle\lim_{x\rightarrow 0}\dfrac{(1-\cos 2x)\sin 5x}{x^2\sin 3x}=?$

$\displaystyle\lim_{x\to \pi/2} \dfrac{sinx-(sinx)^{sin x}}{1-sin x + In sin x}$ is equal to-

The values of $\displaystyle\lim_{n\rightarrow \infty}\dfrac{\sqrt[4]{n^5+2}-\sqrt[3]{n^2+1}}{\sqrt[5]{n^4+2}-\sqrt[2]{n^3+1}}$ is?