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If (1+ )(1+ )=2 , then what is ( + ) equal to?

Options

  1. A30^
  2. B45^
  3. C60^
  4. D90^

Correct answer

B. 45^

Step-by-step solution

aligned & Given (1+ )(1+ )=2 & 1+ + + =2 & + =1- & + 1- =1 & ( + )= 4 & + = 4 =45^ . aligned

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