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

माना क्षेत्र \(\left\{(\mathrm{x}, \mathrm{y}): \mathrm{y} \geq \mathrm{x}^2, \mathrm{y} \geq(1-\mathrm{x})^2, \mathrm{y} \leq 2 \mathrm{x}(1-\mathrm{x})\right\}\) का क्षेत्रफल \(\mathrm{A}\) है तब \(540 \mathrm{~A}\) का मान बराबर है

  1. A \(24\)
  2. B \(25\)
  3. C \(23\)
  4. D \(22\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(25\)

Step-by-step Solution

Detailed explanation

\(A=2 \int \limits_{\frac{1}{3}}^{\frac{1}{2}}\left(2 x-2 x^2-(1-x)^2\right) d x\) \(=2\left[2 x^2-x^3-x\right]_{1 / 3}^{1 / 2}\) \(\therefore A=\frac{5}{108} \Rightarrow 540\,A=\frac{5}{108} \times 540=25\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app