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AP EAMCET202317 May 2023Evening ShiftMathematicsLimitsActual

If _ x 2 1+ 1+4 ₂ x 2+ (2 x+ ^2 x+2 x )(2 x-4) =m then m ( m -1)=

Options

  1. A0
  2. B₂ e
  3. C1
  4. D1+ 3 2

Correct answer

C. 1

Step-by-step solution

_ x 2 1+ 1+4 ₂ x 2+ (2 x+ ^2 x+2 x )(2 x-4) =m aligned & m= 1+ 1+4 ₂ 2 2+ (4+ ^2 2+2 2 )(4-4) & m= 1+ 1+4 2+0 = 1+ 5 2 aligned Now, m(m-1)= ( 1+ 5 2 ) ( 1+ 5 2 -1 )=1

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