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TS EAMCET · Maths · Indefinite Integration

If \(\int \frac{\cos x+x}{1+\sin x} d x=f(x)+\int \frac{3 \cos \frac{x}{2}-\sin \frac{x}{2}}{\cos \frac{x}{2}+\sin \frac{x}{2}} d x+c_r\) then \(f(x)=\)

  1. A \(\frac{-2 x}{1+\tan \frac{x}{2}}\)
  2. B \(\frac{-x \cos \frac{x}{2}}{\cos \frac{x}{2}+\sin \frac{x}{2}}\)
  3. C \(\frac{2 x}{1+\tan \frac{x}{2}}\)
  4. D \(\frac{x \cos \frac{x}{2}}{\cos \frac{x}{2}+\sin \frac{x}{2}}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{-2 x}{1+\tan \frac{x}{2}}\)

Step-by-step Solution

Detailed explanation

We have,…