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AP EAMCET202018 Sep 2020Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If ( (x)= ( ) ), then find ( ^2 ( 2 ) )

Options

  1. A( ^2 ( x 2 ) )
  2. B( ^2 ( x 2 ) )
  3. C( ^2 ( x 2 ) )
  4. D( sech ^2 ( x 2 ) )

Correct answer

B. ( ^2 ( x 2 ) )

Step-by-step solution

Since, ( h^2 ( 2 )= ( )-1 h( )+1 ) ( aligned & = x-1 x+1 ( = x given ) & = 1- x 1+ x = 2 ^2 x 2 2 ^2 x 2 = ^2 x 2 aligned )

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