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

माना \(A_1=\left\{(x, y):|x| \leq y^2,|x|+2 y \leq 8\right\}\) और \(A_2=\{(x, y):|x|+|y| \leq k\}\) है। यदि 27 \(\left(\right.\) क्षेत्रफल \(\left.A _1\right)=5\) (क्षेत्रफल \(A _2\) ) तब \(k\) बराबर होगा।

  1. A \(6\)
  2. B \(8\)
  3. C \(10\)
  4. D \(12\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(6\)

Step-by-step Solution

Detailed explanation

\(A_{1}=\left\{(x, y):|x| \leq y^{2},|x|+2 y \leq 8\right\}\) and \(A_{2}=\{(x, y):|x|+|y| \leq k\} \text {. }\) area \(\left(A_{1}\right)=2\left[\int\limits_{0}^{2} y^{2} d y+\int\limits_{2}^{4}(8-2 y) d y\right]\)…
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