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

माना \(A =\left\{(x, y): y^{2} \leq 4 x, y-2 x \geqslant-4\right\}\) है। क्षेत्र \(A\) का क्षेत्रफल (वर्ग इकाईयों में) है

  1. A \(8\)
  2. B \(9\)
  3. C \(10\)
  4. D \(11\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(9\)

Step-by-step Solution

Detailed explanation

\(=\left|\int_{2}^{4}\left(\frac{y+4}{2}\right) d y\right|-\int_{-2}^{4} \frac{y^{2}}{4} d y\) \( = \left. {\frac{1}{2}\left[ {\frac{{{y^2}}}{2} + 4y} \right]_{ - 2}^4} \right| - \left| {\frac{1}{4}\left[ {\frac{{{y^3}}}{3}} \right]_{ - 2}^4} \right.\)…
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