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      Question

      src="https://www.ixambee.com/questionimage/Railway-Protection-Force-(RPF)-Constable/1722232657-32.JPG" alt="" />
      A A Correct Answer Incorrect Answer
      B B Correct Answer Incorrect Answer
      C C Correct Answer Incorrect Answer
      D D Correct Answer Incorrect Answer

      Solution

      x2/y2 + y2/x2 -2 = (x/y) ┬▓ + (y/x) ┬▓ - 2 x (x/y) x (y/x) = [(x/y) - (y/x)]2 Taking squaring root. [x/y - y/x] .

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