Maths-
General
Easy

Question

P(θ) and D space open parentheses theta plus pi over 2 close parentheses are the pts. on the ellipse b x to the power of 2 end exponent plus a to the power of 2 end exponent y to the power of 2 end exponent equals a to the power of 2 end exponent b to the power of 2 end exponent then C P to the power of 2 end exponent plus C D to the power of 2 end exponent equals

  1. ab    
  2. a+b    
  3. a to the power of 2 end exponent minus b to the power of 2 end exponent    
  4. a to the power of 2 end exponent plus b to the power of 2 end exponent    

The correct answer is: a+b

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