વિધેયનું સંકલન કરો: $\frac{\sin ^{8} x-\cos ^{8} x}{1-2 \sin ^{2} x \cos ^{2} x}$

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(D) ધારો કે $I = \int \frac{\sin ^{8} x-\cos ^{8} x}{1-2 \sin ^{2} x \cos ^{2} x} \, dx$.
આપણે જાણીએ છીએ કે $\sin ^{8} x - \cos ^{8} x = (\sin ^{4} x - \cos ^{4} x)(\sin ^{4} x + \cos ^{4} x) = (\sin ^{2} x - \cos ^{2} x)(\sin ^{2} x + \cos ^{2} x)(\sin ^{4} x + \cos ^{4} x)$.
કારણ કે $\sin ^{2} x + \cos ^{2} x = 1$,તેથી $\sin ^{8} x - \cos ^{8} x = (\sin ^{2} x - \cos ^{2} x)(\sin ^{4} x + \cos ^{4} x)$.
વળી,$\sin ^{4} x + \cos ^{4} x = (\sin ^{2} x + \cos ^{2} x)^{2} - 2 \sin ^{2} x \cos ^{2} x = 1 - 2 \sin ^{2} x \cos ^{2} x$.
આ કિંમતોને સંકલ્યમાં મૂકતા:
$\frac{(\sin ^{2} x - \cos ^{2} x)(1 - 2 \sin ^{2} x \cos ^{2} x)}{1 - 2 \sin ^{2} x \cos ^{2} x} = \sin ^{2} x - \cos ^{2} x = -(\cos ^{2} x - \sin ^{2} x) = -\cos 2x$.
તેથી,$I = \int -\cos 2x \, dx = -\frac{\sin 2x}{2} + C$.

Explore More

Similar Questions

$ \int \frac{\cos 2x - \cos 2\theta}{\cos x - \cos \theta} dx $ ની કિંમત શોધો.

$\int \sqrt{1+\cos x} \, dx$ ની કિંમત શોધો.

$\int [(\log_{2} x)^2 + 2 \log_{2} x] dx = $

વિધેયનું સંકલન કરો: $\sqrt{1+\frac{x^{2}}{9}}$

$\int \left( \frac{1}{x^2} + \frac{\sin^3 x + \cos^3 x}{\sin^2 x \cos^2 x} \right) dx =$

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo