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

  • A
    $-\frac{1}{2}$
  • B
    $-\frac{1}{4}$
  • C
    $-\frac{1}{8}$
  • D
    $-1$

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જો $\int \frac{1-(\cot x)^{2019}}{\tan x+(\cot x)^{2020}} dx = \frac{1}{n} \ln |(f(x))^n + (g(x))^n| + c$ હોય,તો $n[(f(x))^4 + (g(x))^4]_{x=\frac{\pi}{3}}$ ની કિંમત શોધો.

$\int \frac{(1-4 \sin^2 x) \cos x}{\cos (3x+2)} dx =$

ધારો કે $I(x) = \int \sqrt{\frac{x+7}{x}} \, dx$ અને $I(9) = 12 + 7 \log_e 7$. જો $I(1) = \alpha + 7 \log_e(1 + 2\sqrt{2})$ હોય,તો $\alpha^4$ ની કિંમત $..........$ થાય.

$\int {\frac{{{x^2} - 1}}{{{x^4} + {x^2} + 1}}\,dx = }$

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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:

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