यदि $\int \frac{d \theta}{\cos ^2 \theta(\tan 2 \theta+\sec 2 \theta)}=\lambda \tan \theta+2 \log _{e}|f(\theta)|+c$ (जहाँ $c$ समाकलन का एक स्थिरांक है),तो क्रमित युग्म $(\lambda, |f(\theta)|)$ किसके बराबर है?

  • A
    $(1, |1+\tan \theta|)$
  • B
    $(1, |1-\tan \theta|)$
  • C
    $(-1, |1+\tan \theta|)$
  • D
    $(-1, |1-\tan \theta|)$

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यदि $\int e^{3x} \cos 4x \,dx = e^{3x} (A \sin 4x + B \cos 4x) + c$ है,तो:

$\int \frac{\sin x+8 \cos x}{4 \sin x+6 \cos x} d x$ का मान ज्ञात कीजिए।

$k \in N, \int \frac{1-k \cos ^2 x}{\sin ^k x \cdot \cos ^2 x} d x=$

$\int \frac{2 \sin x - 3 \cos x}{4 \cos x - 3 \sin x} dx = $

यदि $\int \frac{d x}{3-2 \cos 2 x}=\frac{\tan ^{-1}(f(x))}{\sqrt{5}}+c$,(जहाँ $c$ समाकलन का स्थिरांक है),तो $f(\pi / 4)$ का मान ज्ञात कीजिए:

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