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

બિંદુ \((- 2, - 1)\) પરથી વક્ર \(y^2 = 4x\) પરના બે સ્પર્શકો દોરવામાં આવે છે જો \(\alpha \) એ તેમની વચ્ચેનો ખૂણો હોય તો \(\left| {\tan \,\alpha } \right|\) = ..

  1. A \(\frac {1}{3}\)
  2. B \(\frac {1}{\sqrt 3}\)
  3. C \(\sqrt 3\)
  4. D \(3\)
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Answer & Solution

Correct Answer

(D) \(3\)

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The locus of the point of intersection of tangents to the parabola \({y^2} = 4ax\) inclined at an angle \(\alpha \) to each other is \({\tan ^2}\alpha {\left( {x + a} \right)^2} = {y^2} - 4ax\) Given equation of Parabola \({y^2} - 4a\left\{ {a = 1} \right\}\) Point of…
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