$n > 0$ માટે,$\int_0^{2\pi } {\frac{{x{{\sin }^{2n}}x}}{{{{\sin }^{2n}}x + {{\cos }^{2n}}x}}\,dx = } $

  • A
    ${\pi ^{ - 1}}$
  • B
    $\pi $
  • C
    ${\pi ^{ - 2}}$
  • D
    ${\pi ^2}$

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વિધાન $(A): \int_{-a}^a f(x) dx = \int_0^a (f(x) + f(-x)) dx$
કારણ $(R): \int_a^b f(x) dx = \int_{g(a)}^{g(b)} f(g(u)) g'(u) du$
નીચેનામાંથી સાચો વિકલ્પ પસંદ કરો:

$\int_{-\pi}^{\pi} \frac{2 x}{1+\cos ^{2} x} d x=$

જો $m, n \in N$ માટે $a=2n$ અને $b=2m+1$ હોય,તો સંકલન $\int_{-\pi}^{\pi} e^{\sin^a x} \cot^b((2n+1)x) dx$ ની કિંમત શોધો.

સંકલન $\int_0^\pi(1-|\sin 8 x|) d x$ નું મૂલ્ય શું છે?

$\int_{0}^{\pi} \frac{e^{\cos x}}{e^{\cos x}+e^{-\cos x}} d x=$

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