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CUET · MATHS · PYQ PAPER 2025

\(\int_0^a \frac{\sqrt{x}}{\sqrt{x}+\sqrt{a-x}} d x\) is equal to

  1. A \(a\)
  2. B \(\frac{a}{2}\)
  3. C \(\frac{a}{3}\)
  4. D \(2 a\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{a}{2}\)

Step-by-step Solution

Detailed explanation

Let \(I = \int_0^a \frac{\sqrt{x}}{\sqrt{x}+\sqrt{a-x}} d x\) By property \(\int_0^a f(x) dx = \int_0^a f(a-x) dx\): \(I = \int_0^a \frac{\sqrt{a-x}}{\sqrt{a-x}+\sqrt{a-(a-x)}} d x = \int_0^a \frac{\sqrt{a-x}}{\sqrt{a-x}+\sqrt{x}} d x\)…
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