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If (45^ + )=1+ 2 , where - 4 4 , then what is the value of 2 ?

Options

  1. A0
  2. B1 2
  3. C1
  4. D2

Correct answer

C. 1

Step-by-step solution

aligned & (45^ + )=1+ 2 & 45^ + 1- 45^ -1= 2 1+ ^2 aligned aligned & 1+ 1- -1= 2 1+ ^2 & 2 1- = 2 1+ ^2 & 2 (1+ ^2 )=2 (1- ) & ^2 [1+ ^2 -1+ ]=0 & ^2 ( +1)=0 & =0 or =-1 (Not possible) aligned =0 [ - 4 4 ] Now, 2 = =1

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