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

यदि \(\displaystyle\int_{\pi/6}^{\pi/4}\left(\cot\left(x-\dfrac{\pi}{3}\right)\cot\left(x+\dfrac{\pi}{3}\right)+1\right)dx = \alpha\log_e(\sqrt{3}-1)\), तो \(9\alpha^2\) के बराबर है ________।

  1. A 12
  2. B 24
  3. C 46
  4. D 48
Verified Solution

Answer & Solution

Correct Answer

(A) 12

Step-by-step Solution

Detailed explanation

दिया गया समाकलन है \(I = \displaystyle\int_{\pi/6}^{\pi/4}\left(\cot\left(x-\dfrac{\pi}{3}\right)\cot\left(x+\dfrac{\pi}{3}\right)+1\right)dx\) सर्वसमिका \(\cot A \cot B + 1 = \dfrac{\cos(A-B)}{\sin A \sin B}\) का उपयोग करते हुए, समाकल्य सरल हो जाता है:…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app