MCQ
$\int_{0}^{\frac{\pi}{2}} 60 \frac{\sin (6 x)}{\sin x} d x$ ની કિમંત મેળવો.
- A$103$
- B$102$
- C$104$
- D$100$
$I=60 \int_{0}^{\pi / 2}(2 \cos 5 x+2 \cos 3 x+2 \cos x) d x$
$I=\left.60\left(\frac{2}{5} \sin 5 x+\frac{2}{3} \sin 3 x+2 \sin x\right)\right|_{0} ^{\pi / 2}=104$
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