MCQ
The value of $1 - [1 - 1 - (1 - 1 + x)]$ on simplifying is:
  • A
    $2 - x$
  • $1 + x$
  • C
    $1 - x$
  • D
    $2 + x$

Answer

Correct option: B.
$1 + x$
$1 - [1 - 1 - (1 - 1 + x)] $
$= 1 - [1 - 1 - (x)] $
$= 1 - [1 - 1 - x] $
$= 1 - 1 + 1 + x $
$= 1 + x$

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