JEE MAIN - Mathematics Hindi (2024 - 27th January Evening Shift - No. 19)
$$0<\mathrm{a}<1$$ के लिए, समाकलन $$\int_\limits0^\pi \frac{\mathrm{d} x}{1-2 \mathrm{a} \cos x+\mathrm{a}^2}$$ का मान है :
$$\frac{\pi^2}{\pi+a^2}$$
$$\frac{\pi^2}{\pi-a^2}$$
$$\frac{\pi}{1-a^2}$$
$$\frac{\pi}{1+\mathrm{a}^2}$$
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