$\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \log \left(\frac{2019-x}{2019+x}\right) d x=$ . . . . . . .

જો $\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \frac{96 x^2 \cos^2 x}{1+e^x} dx = \pi(\alpha \pi^2 + \beta)$,જ્યાં $\alpha, \beta \in \mathbb{Z}$,તો $(\alpha + \beta)^2$ ની કિંમત શોધો:

$\int\limits_{ - 1}^1 {\frac{{{x^3} + |x| + 1}}{{{x^2} + 2|x| + 1}}} dx = a \ln 2 + b$,તો:

$\int_0^{\frac{\pi}{2}} \sqrt{\tan x} \, dx =$

ધારો કે $I(R) = \int_0^R e^{-R \sin x} dx$, જ્યાં $R > 0$. તો,

$\int_0^{\frac{\pi}{2}} \left( \frac{\sqrt[n]{\sec x}}{\sqrt[n]{\sec x} + \sqrt[n]{\operatorname{cosec} x}} \right) dx = $