$f\left(x\right) =\sqrt{x}$হলে

i. $f\text{'}\left(x\right) =\frac{1}{2\sqrt{x}}$

ii. ${\int }_0^{1}f\left(x\right)dx=\frac{2}{3}$

iii. $\int \frac{se{c}^{2}x}{f\left(\tan x\right)}dx=\frac{1}{2}\sqrt{\tan x}+c$