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TS EAMCET · Maths · Indefinite Integration

If \(\int \sin (101 x)(\sin x)^{99} d x=\frac{\sin (100 x)(\sin x)^\lambda}{\mu}+\mathrm{c}\) then \(\frac{\lambda}{\mu}=\)

  1. A \(1\)
  2. B \(2\)
  3. C \(4\)
  4. D \(8\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(1\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \int \sin (101 x) \cdot(\sin x)^{99} d x \\ & =\int \sin (100 x+x) \cdot(\sin x)^{99} d x \\ & =\int(\sin 100 x \cdot \cos x+\cos 100 x \cdot \sin x)(\sin x)^{99} d x \\ & =\iint_{\text {I }} \sin (100 x) \cdot \underbrace{\cos x \cdot(\sin x)^{99}}_{\text {II…

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