समाकल का मूल्यांकन करें: $\int \frac{\sin x}{\sin 4x} dx$

  • A
    $\frac{1}{4\sqrt{2}} \log \left| \frac{1 + \sqrt{2} \sin x}{1 - \sqrt{2} \sin x} \right| + \frac{1}{4} \log |\sec x + \tan x| + c$
  • B
    $\frac{1}{4\sqrt{2}} \log \left| \frac{1 + \sqrt{2} \sin x}{1 - \sqrt{2} \sin x} \right| - \frac{1}{4} \log |\sec x + \tan x| + c$
  • C
    $\frac{1}{4\sqrt{2}} \log \left| \frac{1 - \sqrt{2} \sin x}{1 + \sqrt{2} \sin x} \right| + \frac{1}{4} \log |\sec x + \tan x| + c$
  • D
    $\frac{1}{4\sqrt{2}} \log \left| \frac{1 - \sqrt{2} \sin x}{1 + \sqrt{2} \sin x} \right| - \frac{1}{4} \log |\sec x + \tan x| + c$

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परिमेय फलन का समाकलन कीजिए: $\frac{x}{(x-1)^{2}(x+2)}$

यदि $\int \frac{2x^2+3}{(x^2-1)(x^2-4)} dx = \log \left[\left(\frac{x-2}{x+2}\right)^a \cdot \left(\frac{x+1}{x-1}\right)^b\right] + c$,(जहाँ $c$ समाकलन का स्थिरांक है),तो $a+b$ का मान ज्ञात कीजिए।

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

यदि $\int {\frac{{2x + 3}}{{(x - 1)({x^2} + 1)}}dx = {{\log }_e}\left\{ {{{(x - 1)}^{\frac{5}{2}}}{{({x^2} + 1)}^a}} \right\}} - \frac{1}{2}{\tan ^{ - 1}}x + A$,जहाँ $A$ एक स्वैच्छिक स्थिरांक है,तो $a$ का मान ज्ञात कीजिए।

Difficult
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यदि $\int {\frac{{2{x^2} + 3}}{{({x^2} - 1)({x^2} - 4)}}} dx = \log {\left( {\frac{{x - 2}}{{x + 2}}} \right)^a}{\left( {\frac{{x + 1}}{{x - 1}}} \right)^b} + c$ है,तो $a$ और $b$ के मान क्रमशः क्या हैं?

Difficult
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