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$\int_0^\pi x (\sin^2(\sin x) + \cos^2(\cos x)) dx = $

यदि $m, n \in N$ के लिए $a=2n$ और $b=2m+1$ है,तो समाकलन $\int_{-\pi}^{\pi} e^{\sin^a x} \cot^b((2n+1)x) dx$ का मान ज्ञात कीजिए।

$\int_0^{\frac{\pi}{2}} \frac{\sin \left(\frac{\pi}{4}+x\right)+\sin \left(\frac{3 \pi}{4}+x\right)}{\cos x+\sin x} d x=$

$\int_0^{2 \pi} \sin ^3 x \cos ^2 x \, dx = $ . . . . . . .

मान लीजिए $g_i: \left[\frac{\pi}{8}, \frac{3\pi}{8}\right] \rightarrow \mathbb{R}, i=1, 2$,और $f: \left[\frac{\pi}{8}, \frac{3\pi}{8}\right] \rightarrow \mathbb{R}$ ऐसे फलन हैं कि $g_1(x)=1, g_2(x)=|4x-\pi|$ और $f(x)=\sin^2 x$,सभी $x \in \left[\frac{\pi}{8}, \frac{3\pi}{8}\right]$ के लिए।
$S_i = \int_{\frac{\pi}{8}}^{\frac{3\pi}{8}} f(x) \cdot g_i(x) dx, i=1, 2$ को परिभाषित करें।
$(1)$ $\frac{16S_1}{\pi}$ का मान है।
$(2)$ $\frac{48S_2}{\pi^2}$ का मान है।

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