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Manipal MET2021MathematicsTrigonometric Ratios & Identities

^2 ( 4 + 2 ) is equal to

Options

  1. A1- 1+
  2. B1- 1+
  3. C1+ 1-
  4. D2- 2+

Correct answer

A. 1- 1+

Step-by-step solution

^2 ( 4 + 2 ) aligned & = [ ( 4 + 2 ) ]^2= [ 2 4 -1 2 + 4 ]^2 & = [ 2 - 2 2 + 2 ]^2= 1- 1+ aligned

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