यदि $f^{\prime}(x)=\tan ^2(x)+\cot ^2(x)$ और $f\left(\frac{\pi}{4}\right)=0$ है,तो $f(x)$ का मान क्या होगा?

  • A
    $\tan (x)-\cot (x)-x+\frac{\pi}{2}$
  • B
    $\tan (x)-\cot (x)-2 x+\frac{\pi}{2}$
  • C
    $\tan (x)+\cot (x)-2 x+\frac{\pi}{2}$
  • D
    $\sec (x)-\operatorname{cosec}(x)-2 x+\frac{\pi}{2}$

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यदि $x > 0$ और $x \neq (2n+1) \frac{\pi}{2}$ है,तो $\int \left(x \sqrt{x} - e^{\log(\sec x \tan x)} + \frac{3x^2 - 2x + 1}{x^2}\right) dx =$

$\int \frac{x^3+2 x}{x^4+4} d x=$

$\int \frac{x - 2}{x^2 - 4x + 3} dx = $

यदि $\int \frac{e^x-1}{e^x+1} dx = f(x) + c$ है,तो $f(x)$ का मान ज्ञात कीजिए।

निम्नलिखित समाकलन ज्ञात कीजिए: $\int \frac{2-3 \sin x}{\cos ^{2} x} d x$

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