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If x $ y = (x + y + xy –1) (x + y + xy + 1), then the value of (5 $ 10) is.
  • a)
    4422  
  • b)
    4224
  • c)
    4242  
  • d)
    4142 
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If x $ y = (x + y + xy –1) (x + y + xy + 1), then the value of (...
As per the definition of $, (5$10) would be (5 + 10 + 5 × 10 - 1) (5 + 10 + 5 × 10 + 1) = 4224. So, answer is (a)
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If x $ y = (x + y + xy –1) (x + y + xy + 1), then the value of (5 $ 10) is.a)4422 b)4224c)4242 d)4142Correct answer is option 'B'. Can you explain this answer?
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