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

माना वक्रों \(|y|=1-x^2\) और \(x^2+y^2=1\) के बीच घिरा क्षेत्रफल \(\alpha\) है। यदि \(9 \alpha=\beta \pi+\gamma ; \beta, \gamma\) पूर्णांक हैं, तो \(|\beta-\gamma|\) का मान क्या है?

  1. A 27
  2. B 33
  3. C 15
  4. D 18
Verified Solution

Answer & Solution

Correct Answer

(B) 33

Step-by-step Solution

Detailed explanation

Required area \(=\pi-4 \int_0^1\left(1-x^2\right) d x \) \( =\pi-4\left[x-\frac{x^3}{3}\right]_0^1 \) \( =\pi-4 \times \frac{2}{3}=\pi-\frac{8}{3} \) \( \therefore \alpha=\pi-\frac{8}{3} \) \( 9 \alpha=9 \pi-24 \rightarrow \beta=9, \gamma=-24 \) \( |\beta-\gamma|=|9+24|=33\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app