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MHT CET202123 Sep 2021Morning ShiftMathematicsDifferentiationActual

If u= ^3 x, v= ^3 x , then ( d v d u )_ x= 4 is equal to

Options

  1. A-2
  2. B2
  3. C1
  4. D-1

Correct answer

D. -1

Step-by-step solution

aligned & u= ^3 x, v= ^3 x & d u d x =3 ^2 x(- x) and d v d x =3 ^2 x( x) & d v d u = 3 ^2 x x -3 x ^2 x =- x & ( d v d u )_ x= 4 =- ( 4 =-1 ) aligned

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