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The value ofoverset([x])underset(0)int (...

The value of`overset([x])underset(0)int (x-[x])dx` ,where [x] is the greatest integer of x is equal to

A

[x]

B

2[x]

C

`(1//2)[x]`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
We have,
`overset([x])underset(0)int (x-[x])dx`
`rArrI=[x]overset(1)underset(0)int(x-[x])dx" "[:'x-[x]" is periodic"]`
`rArr I=(1)/(2)[x]`
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OBJECTIVE RD SHARMA ENGLISH-DEFINITE INTEGRALS-Chapter Test 2
  1. The value ofoverset([x])underset(0)int (x-[x])dx ,where [x] is the g...

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  2. The value of the integral int(0)^(2)x[x]dx

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  3. The value of integral sum (k=1)^(n) int (0)^(1) f(k - 1+x) dx is

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  4. Let f (x) be a function satisfying f(x)=f(x) with f(0) = 1 and g be th...

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  5. If I=int(0)^(1)cos(2 cot^(-1)sqrt(((1-x)/(1+x))))dx then :

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  6. The value of int(a)^(a+(pi//2))(sin^(4)x+cos^(4)x)dx is

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  7. The vaue of int(-1)^(2) (|x|)/(x)dx is

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  8. The value of int0^1 (x^(3))/(1+x^(8))dx is

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  9. The value of int(0)^(3) xsqrt(1+x)dx, is

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  10. Evaluate int(0)^(1)log(sin((pix)/(2)))dx

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  11. Evaluate int(0)^(pi) xlog sinx dx

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  12. If I(1)=int(0)^(oo) (dx)/(1+x^(4))dx and I(2)=underset(0)overset(oo)i...

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  13. If f(x)={{:(x,xlt1),(x-1,xge1):}, then underset(0)overset(2)intx^(2)f(...

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  14. The value of the integral overset(1)underset(0)int (1)/((1+x^(2))^(3//...

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  15. Prove that: int0^(2a)f(x)dx=int0^(2a)f(2a-x)dxdot

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  16. If int(0)^(36) (1)/(2x+9)dx =log k, is equal to

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  17. The value of the integral int(0)^(pi//2) sin^(6) x dx, is

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  18. If int(0)^(oo) e^(-x^(2))dx=sqrt((pi)/(2))"then"int(0)^(oo) e^(-ax^(2)...

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  19. The value of the integral int 0^oo 1/(1+x^4)dx is

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  20. The value of alpha in [0,2pi] which does not satify the equation int(p...

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  21. lim(x to 0)(int(0)^(x^(2))sinsqrt(t) dt)/(x^(3)) is equl to

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