∫0π2sin1000xsin1000x + cos1000xdx is equal

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811.

The value of e6logx - e5logxe4logx - e3logxdx is equal to

  • 0 + C

  • x33 + C

  • 3x3 + C

  • 1x + C


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812.

0π2sin1000xsin1000x + cos1000xdx is equal to

  • 1000

  • 1

  • π2

  • π4


D.

π4

Let I = 0π2sin1000xsin1000x + cos1000xdx           ...i I = 0π2sin1000π2 - xsin1000π2 - x + cos1000π2 - xdx      0afxdx = 0afa - xdx I = 0π2cos1000xsin1000x + cos1000xdx         ...iiOn addingEqs. (i) and (ii), we get      2I = 0π2sin1000x + cos1000xsin1000x + cos1000xdx 2I = 0π21dx = x0π2  2I = π2   I = π4


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813.

The vaue of 2810 - xx + 10 - xdx is

  • 10

  • 0

  • 8

  • 3


814.

- π2π2dxesinx + 1

  • 1

  • 0

  • π2

  • - π2


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815.

- 55x + 2dx is equal to

  • 28

  • 30

  • 29

  • 27


816.

0π21a2 . sin2x +b2 . cos2xdx

  • π2ab

  • πb4a

  • πa2b

  • πa4b


817.

x2 + 2x + 5dx is equal to

  • 12x + 1x2 + 2x + 5 + 2logx + 1 + x2 + 2x + 5 + C

  • x + 1x2 + 2x + 5 + 12logx + 1 + x2 + 2x + 5 + C

  • x + 1x2 + 2x + 5 + 2logx + 1 + x2 + 2x + 5 + C

  • x + 1x2 + 2x + 5 - 2logx + 1 + x2 + 2x + 5 + C


818.

x + 3exx + 42dx is equal to

  • exx + 42 + C

  • exx + 3 + C

  • 1x + 42 + C

  • exx + 4 + C


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819.

cos2x - cos2θcosx - cosθdx is equal to

  • 2sinx + xcosθ

  • 2sinx - xcosθ

  • 2sinx + 2xcosθ

  • 2sinx - 2xcosθ


820.

0.23.5xdx is equal to

  • 3.5

  • 4

  • 4.5

  • 3


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