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If ( - ), and ( + ) are in AP, where 1 , then what is the value of ^2 + ?

Options

  1. A0
  2. B1
  3. C-1
  4. D1/2

Correct answer

A. 0

Step-by-step solution

aligned & 2 = ( + )+ ( - ) ( + ) ( - ) = 2 ^2 - ^2 & ^2 = ^2 - ^2 & ^2 = ^2 (1- ) & ^2 = ^2 1- =1+ & 1- ^2 =1+ & ^2 + =0 aligned

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