Subject

Mathematics

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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21.

- 111 - xdx is equal to

  • - 2

  • 0

  • 2

  • 4


C.

2

We have, I = - 111 - xdxHere, - 1  x  1          1 - x  0 I = - 111 - xdx       = x - x22- 11        = 1 - 12 + 12 + 1        = 2


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22.

xexdx is equal to

  • 2x - ex - 4xex +c

  • 2x - 4x + 4ex +c

  • 2x + 4x + 4ex +c

  • 1 - 4x ex +c


23.

dxx2 +2x + 2 is equal to

  • sin-1x +1 +c

  • sinh-1x +1 +c

  • tanh-1x +1 +c

  • tan-1x +1 +c


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