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JEE Mains · Maths · STD 12 - 8. Application and integration

यदि परिबद्धित क्षेत्र \(R=\left\{(x, y): \max \left\{0, \log _{e} x\right\} \leq y \leq 2^{x}, \frac{1}{2} \leq x \leq 2\right\}\) का क्षेत्रफल \(\alpha\left(\log _{ e } 2\right)^{-1}+\beta\left(\log _{ e } 2\right)+\gamma\) है, तो \((\alpha+\beta-2 \gamma)^{2}\) का मान बराबर है

  1. A \(\frac{7}{3}\)
  2. B \(\frac{13}{3}\)
  3. C \(\frac{17}{3}\)
  4. D \(\frac{8}{3}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{7}{3}\)

Step-by-step Solution

Detailed explanation

Required area \(=\int_{0}^{1}\left(4-2 x-2 s^{2}\right) d x=4 x-x^{2}-\left.\frac{2 x^{3}}{3}\right|_{0} ^{1}\) \(=4-1-\frac{2}{3}=\frac{7}{3}\)
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