Maths-
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Question

If P (a costheta, bsintheta) is a point on an ellipse fraction numerator x to the power of 2 end exponent over denominator a to the power of 2 end exponent end fraction plus fraction numerator y to the power of 2 end exponent over denominator b to the power of 2 end exponent end fraction equals 1, then 'theta ' is –

  1. Angle of OP line from positive direction of x-axis (O is origin)    
  2. Angle of OQ line from positive direction of x-axis [when Q is (a costheta, a sintheta)]    
  3. It depends on the point p    
  4. None of the above    

The correct answer is: Angle of OQ line from positive direction of x-axis [when Q is (a costheta, a sintheta)]

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