જો $I_n=\int(\cos ^n x+\sin ^n x) d x$ અને $I_n-\frac{n-1}{n} I_{n-2}=\frac{\sin x \cos x}{n} f(x)$ હોય,તો $f(x)=$

  • A
    $\cos ^{n-2} x+\sin ^{n-2} x$
  • B
    $\cos ^{n-2} x-\sin ^{n-2} x$
  • C
    $\frac{\cos ^{n-2} x-\sin ^{n-2} x}{n}$
  • D
    $\frac{\cos ^{n-2} x+\sin ^{n-2} x}{n}$

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જો $\int \frac{\cos 4x + 1}{\cot x - \tan x} dx = k \cos 4x + c$ હોય,તો $k$ ની કિંમત શોધો.

જો $\int \frac{4e^x + 6e^{-x}}{9e^x - 4e^{-x}} dx = Ax + B \log |9e^{2x} - 4| + C$ હોય,તો $A, B$ અને $C$ શું છે?

$x > 0$ માટે,જો $\int (\log x)^5 dx = x[A(\log x)^5 + B(\log x)^4 + C(\log x)^3 + D(\log x)^2 + E(\log x) + F] + \text{constant}$ હોય,તો $A + B + C + D + E + F$ ની કિંમત શોધો.

ધારો કે $I_{n}(x)=\int_{0}^{x} \frac{1}{(t^{2}+5)^{n}} dt, n=1, 2, 3, \ldots$. તો

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