यदि $f^{\prime}(x)=x+\frac{1}{x}$ है,तो $f(x)=$

  • A
    $x^2+\log |x|+c$
  • B
    $\frac{x^2}{2}+\log |x|+c$
  • C
    $x+\log |x|+c$
  • D
    $\frac{x}{2}+\log |x|+c$

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Difficult
View Solution

फलन $\frac{\cos 2x + 2\sin^2 x}{\cos^2 x}$ का समाकलन ज्ञात कीजिए।

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