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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

If the tangent at P of the curve y^2 = x^3 intersects the curve again at Q and the straight line OP, OQ have inclinations , where O is origin, then ( ) has the value, equals to :

Options

  1. A-1
  2. B-2
  3. C2
  4. D2

Correct answer

B. -2

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