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AP EAMCET20226 Jul 2022Evening ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If is any angle, then ^2 ^2 =

Options

  1. A1- 2
  2. B1- 4
  3. C1 4 (1- 4 )
  4. D1 8 (1- 4 )

Correct answer

D. 1 8 (1- 4 )

Step-by-step solution

aligned & Here, ^2 ^2 & = ( 1- 2 2 ) ( 1+ 2 2 ) & = 1- ^2 2 4 = 1- ( 1+ 4 2 ) 4 & = 1- 1 2 - 4 2 4 = 1 8 (1- 4 ) aligned

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