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MHT CET20242 May 2024Evening ShiftMathematicsTrigonometric EquationsActual

If + + = , then the expression ^2 + ^2 - ^2 has the value

Options

  1. A2
  2. B2
  3. C2
  4. D2

Correct answer

D. 2

Step-by-step solution

aligned & ^2 + ^2 - ^2 & = ^2 + ( + ) ( - ) & = ^2 + ( - ) ( - ) & = [ + ( - )] & = [ ( + )+ ( - )] & =2 aligned

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