int_0^{frac{pi}{4}} log (1+tan x) , dx = | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) ધારો કે $I = \int_0^{\frac{\pi}{4}} \log (1+	an x) \, dx$. ગુણધર્મ $\int_0^a f(x) \, dx = \int_0^a f(a-x) \, dx$ નો ઉપયોગ કરતા: $I = \int_0^{\fra

Vedclass · Accepted Answer

$\frac{\pi}{8} \log 2$

Vedclass · Answer

(D) ધારો કે $I = \int_0^{\frac{\pi}{4}} \log (1+	an x) \, dx$. ગુણધર્મ $\int_0^a f(x) \, dx = \int_0^a f(a-x) \, dx$ નો ઉપયોગ કરતા: $I = \int_0^{\frac{\pi}{4}} \log \left(1+	an \left(\frac{\pi}{4}-xight)ight) \, dx$. કારણ કે $	an(\frac{\pi}{4}-x) = \frac{1-	an x}{1+	an x}$,તેથી: $I = \int_0^{\frac{\pi}{4}} \log \left(1+\frac{1-	an x}{1+	an x}ight) \, dx = \int_0^{\frac{\pi}{4}} \log \left(\frac{2}{1+	an x}ight) \, dx$. $I = \int_0^{\frac{\pi}{4}} (\log 2 - \log(1+	an x)) \, dx$. $I = \int_0^{\frac{\pi}{4}} \log 2 \, dx - \int_0^{\frac{\pi}{4}} \log(1+	an x) \, dx$. $I = [x \log 2]_0^{\frac{\pi}{4}} - I$. $2I = \frac{\pi}{4} \log 2$. $I = \frac{\pi}{8} \log 2$.

$\int_0^{\frac{\pi}{4}} \log (1+\tan x) \, dx =$

Similar Questions

$ \int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \frac{dx}{e^{\sin x}+1} $ ની કિંમત શોધો.

$\int_1^3 \sqrt{3 + x^3} \,dx$ નું મૂલ્ય કયા અંતરાલમાં આવેલું છે?

જો $\int_0^\pi {xf(\sin x)dx = A} \int_0^{\pi /2} {f(\sin x)dx} $ હોય,તો $A$ ની કિંમત શું થાય?

$\int_{\frac{-\pi}{2}}^{\frac{\pi}{2}}(x^5-x^3 \cos x+\sin^3 x-3) \, dx = $ . . . . . .

Vedclass Test Series

Exam Paper Generator

Online Exam Module