$\int_0^1 x(1-x)^n dx =$

જો $\int \limits_0^\pi \frac{5^{\cos x}(1+\cos x \cos 3x+\cos^2 x+\cos^3 x \cos 3x) dx}{1+5^{\cos x}} = \frac{k \pi}{16}$ હોય,તો $k$ ની કિંમત $...........$ છે.

$\int_{-\pi / 8}^{\pi / 8} \frac{\sin ^4(4 x)}{1+e^{4 x}} d x=$

$\int_{0}^{\sqrt{3}} (x+4)^2 e^{x^2} dx + \int_{\sqrt{3}}^{0} (x-4)^2 e^{x^2} dx$ ની કિંમત શોધો.

જો $I=\int_0^{\frac{\pi}{2}} \frac{\sin ^{\frac{3}{2}} x}{\sin ^{\frac{3}{2}} x+\cos ^{\frac{3}{2}} x} d x$ હોય,તો $\int_0^{\frac{\pi}{2}} \frac{x \sin x \cos x}{\sin ^4 x+\cos ^4 x} d x$ ની કિંમત શોધો:

ધારો કે $L = \sqrt[3]{2012} + \sqrt[3]{2013} + \ldots + \sqrt[3]{3011}$,$R = \sqrt[3]{2013} + \sqrt[3]{2014} + \ldots + \sqrt[3]{3012}$,અને $I = \int_{2012}^{3012} \sqrt[3]{x} \, dx$. તો,