ExamBro
ExamBro
JEE Mains · Maths · STD 12 - 7.2 definite integral

माना \(\alpha>0\) है। यदि \(\int_0^\alpha \frac{\mathrm{x}}{\sqrt{\mathrm{x}+\alpha}-\sqrt{\mathrm{x}}} \mathrm{dx}=\frac{16+20 \sqrt{2}}{15}\) है, तो \(\alpha\) बराबर है :

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

Answer & Solution

Correct Answer

(A) \(2\)

Step-by-step Solution

Detailed explanation

After rationalising \(\int \limits_0^\alpha \frac{ x }{\alpha}(\sqrt{ x +\alpha}+\sqrt{ x })\) \(\int \limits _0^\alpha \frac{1}{\alpha}\left[( x +\alpha)^{3 / 2}-\alpha( x +\alpha)^{1 / 2}+ x ^{3 / 2}\right]\)…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app