$\int {\frac{{\sec x(1 + \tan x)dx}}{{({e^{ - x}} + \sec x)}}} = f(x) + C$ जहाँ $f(0) = \ln 2$ है,तो $f\left( {\frac{\pi }{4}} \right)$ का मान क्या है?

  • A
    $\ln \left( {1 + {e^{\frac{\pi }{4}}}\sqrt 2 } \right)$
  • B
    $\ln \left( {\sqrt 2 } \right)$
  • C
    $\ln \left( {2\sqrt 2 } \right)$
  • D
    $\ln \left( {\frac{{{e^{\frac{\pi }{4}}}}}{{\sqrt 2 }} + 1} \right)$

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Similar Questions

$\int \frac{x}{x^4 + x^2 + 1} dx$ का मान ज्ञात कीजिए।

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यदि $\int \frac{\sqrt{1-x^2}}{x^4} \,dx = A(x)\left(\sqrt{1-x^2}\right)^{m} + c$ एक उपयुक्त पूर्णांक $m$ और फलन $A(x)$ के लिए है,जहाँ $c$ समाकलन स्थिरांक है,तो $(A(x))^{m}$ का मान ज्ञात कीजिए।

$\int \frac{\cos x - \sin x}{1 + \sin 2x} \, dx = $

फलन $\frac{(\log x)^{2}}{x}$ का समाकलन कीजिए।

$\int \frac{\sqrt{x^2-a^2}}{x} d x = \_\_\_\_$

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