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

વક્રો \(x^{2}+2 y-1=0, y^{2}+4 x-4=0\) અને \(y^{2}-4 x-\) \(4=0\) દ્વારા ઉપરના અર્ધતલ માં ઘેરતા આવૃત પ્રદેશનું ક્ષેત્રફળ મેળવો.

  1. A \(1\)
  2. B \(2\)
  3. C \(3\)
  4. D \(4\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(2\)

Step-by-step Solution

Detailed explanation

Required Area (shaded) \(=2\left[\int_{0}^{2}\left(\frac{4-y^{2}}{4}\right) \,d y-\int_{0}^{1}\left(\frac{1-x^{2}}{2}\right) \,d x\right]\) \(=2\left[\frac{4}{3}-\frac{1}{3}\right]=(2)\)
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