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JEE Mains · Maths · STD 11 - 10.2 parabola,ellipse,hyperbola

જો પરવલય \(S: y^{2}=2 x\) નો બિંદુ \(P(2,2)\) આગળનો સ્પર્શક \(x\)-અક્ષને બિંદુ \(Q\) આગળ અને અભિલંભ એ પરવલય \(S\) ને બિંદુ \(R\) આગળ છેદે છે. તો ત્રિકોણ \(P Q R\) નું ક્ષેત્રફળ મેળવો.

  1. A \(25\)
  2. B \(\frac{25}{2}\)
  3. C \(\frac{15}{2}\)
  4. D \(\frac{35}{2}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{25}{2}\)

Step-by-step Solution

Detailed explanation

Tangent at \(\mathrm{P}: \mathrm{y}(2)=2(1 / 2)(\mathrm{x}+2)\) \(\Rightarrow 2 y=x+2\) \(\therefore Q=(-2,0)\) Normal at \(\mathrm{P}: \mathrm{y}-2=-\frac{(2)}{2.1 / 2}(x-2)\) \(\Rightarrow y-2=-2(x-2)\) \(\Rightarrow y=6-2 x\) \(\therefore\) Solving with…
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