∫x2ax + b- 2dx is equal to : from Mathem

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 Multiple Choice QuestionsMultiple Choice Questions

551.

13xdx is :

  • 13xlog13 + c

  • 13x + 1 + c

  • 14x + c

  • 14x + 1 + c


552.

0π2sin2xlogtanxdx

  • π

  • π2

  • 1

  • 0


553.

0π2xsinxdx is equal to :

  • π4

  • π2

  • π

  • 1


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554.

x2ax + b- 2dx is equal to :

  • 2a2x - balogax +b + c

  • 2a2x - balogax +b - x2aax + b

  • 2a2x + balogax +b - x2aax + b + c

  • 2a2x + balogax +b - x2aax + b + c


B.

2a2x - balogax +b - x2aax + b

Let I = x2ax + b2dxPut ax + b = t dx = 1adt and x = t - ba I = 1a3t - b2t2dt= 1a31 + b2t2 - 2btdt= 1a3t - b2t - 2blogt + c= 1a3ax + b - b2ax + b - 2blogax + b + c= 2a2x - balogax +b - x2aax + b + c


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555.

If f(t) is an odd function, then 0xftdt is :

  • an odd function

  • an even function

  • neither even nor odd

  • 0


556.

e- logxdx is equal to :

  • e- log(x) + C

  • - xe- log(x) + C

  • elog(x) + C

  • logx + C


557.

ax2a- x - axdx is equal to :

  • 1logasin-1ax + c

  • 1logatan-1ax + c

  • 2a- x - ax + c

  • logax - 1 + c


558.

If g(x) = fx - f- x2  defined over [- 3, 3], and f(x) = 2x2 - 4x + 1, then - 33gxdx is equal to :

  • 0

  • 4

  • - 4

  • 8


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559.

sinxsinx - adx is equal to :

  • xcosa - sinalogsinx - a + c

  • xsina + c

  • xsina + sinalogsinx - a + c

  • xcosa + sinalogsinx - a + c


560.

f'xfxlogfxdx is equal to :

  • fxlogfx

  • f(x) . log(f(x)) + c

  • loglogfx + c

  • 1loglogfx + c


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