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AP EAMCET · Maths · Definite Integration

If \(f(t)=\int_0^t \tan ^{(2 n-1)} x d x, n \in N\), then \(f(t+\pi)=\)

  1. A \(f(t) f(\pi)\)
  2. B \(\mathrm{f}(\mathrm{t})-\mathrm{f}(\pi)\)
  3. C \(\mathrm{f}(\mathrm{t})+\mathrm{f}(\pi)\)
  4. D \(\frac{f(t)}{f(\pi)}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\mathrm{f}(\mathrm{t})+\mathrm{f}(\pi)\)

Step-by-step Solution

Detailed explanation

\(f(t+\pi) = \int_0^{t+\pi} \tan^{(2n-1)} x dx\) \(f(t+\pi) = \int_0^{\pi} \tan^{(2n-1)} x dx + \int_{\pi}^{t+\pi} \tan^{(2n-1)} x dx\) Let \(y = x - \pi\) in the second integral. Then \(x = y + \pi\) and \(dx = dy\).…