જો $n$ એ $1$ કરતા મોટી ધન પૂર્ણાંક સંખ્યા હોય અને $I_{n}=\int \frac{\sin n x}{\sin x} d x$ હોય, તો $I_{n+1}-I_{n-1}=$

  • A
    $\frac{2}{n-1} \cos (n-1) x$
  • B
    $\frac{2}{n-1} \sin (n-1) x$
  • C
    $\frac{2}{n} \cos n x$
  • D
    $\frac{2}{n} \sin n x$

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$\int \frac{1}{(x^2 - 1)\sqrt{x^2 + 1}} \, dx = $

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ધારો કે $I(x)=\int\frac{3dx}{(4x+6)(\sqrt{4x^{2}+8x+3})}$ અને $I(0)=\frac{\sqrt{3}}{4}+20$. જો $I(\frac{1}{2})=\frac{a\sqrt{2}}{b}+c$, જ્યાં $a, b, c \in N$ અને $gcd(a,b)=1$, તો $a+b+c$ ની કિંમત શોધો:

$\int e^{\tan ^{-1} x} \cdot \frac{1+x+x^2}{1+x^2} dx$ નું મૂલ્ય શોધો.

$\int \frac{dx}{\tan x+\cot x+\sec x+\operatorname{cosec} x} = $

મૂલ્ય શોધો: $\int \frac{2 \cos x+1}{(2+\cos x)^2} d x - \frac{\sin x}{2+\cos x}$

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