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Paragraph: Read the following information and answer that follow: Let a ^2 x+b ^2 x=c ; b ^2 y+a ^2 y=d and p x=q y . Question: What is d-a b-d equal to?

Options

  1. A^2 y
  2. B^2 y
  3. C^2 y
  4. D^2 y

Correct answer

C. ^2 y

Step-by-step solution

From b ^2 y+a ^2 y=d aligned & b ^2 y+a ^2 y=d ( ^2 y+ ^2 y ) & (b-d) ^2 y=(d-a) ^2 y & ^2 y ^2 y = (d-a) (b-d) ^2 y= (d-a) (b-d) aligned

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