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If f(x)={{:(x,xlt1),(x-1,xge1):}, then u...

If `f(x)={{:(x,xlt1),(x-1,xge1):}`, then `underset(0)overset(2)intx^(2)f(x)` dx is equal to :

A

1

B

`(4)/(3)`

C

`(5)/(3)`

D

`(5)/(2)`

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Verified by Experts

The correct Answer is:
C
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OBJECTIVE RD SHARMA ENGLISH-DEFINITE INTEGRALS-Chapter Test 2
  1. Evaluate int(0)^(pi) xlog sinx dx

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

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

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

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

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

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

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

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

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

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

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  12. If [int0^1(dt)/(t^2+2tcosalpha+1)]x^2-[int- 3^3(t^2sin2t)/(t^2+1)dt]x-...

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  13. The number of value of alpha in the interval [-pi,0] satisfying sin...

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  14. The value of int(0)^(pi//2) (sin^(3)x cos x)/(sin^(4)x+ cos^(4)x )dx i...

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  15. The value of int0^pi1/(5+3cosx)dx is a. pi//2 b. pi//4 c. 0 d. pi...

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  16. underset(nrarroo)"lim"[sin'(pi)/(n)+sin'(2pi)/(n)+"......"+sin((n-1))/...

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  17. underset(nrarr0)" lim" underset(r=1)overset(n)sum((r^(3))/(r^(4)+n^(4)...

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  18. The value of lim(n to oo) {(1+(1)/(n))(1+(2)/(n))(1+(3)/(n))...(2)}^(1...

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  19. Evaluate: (lim)(nvecoo)n[1/(n a)+1/(n a+1)+1/(n a+2)++1/(n b)]

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  20. If I(n)=int(0)^(pi//4) tan^(n)x dx, (ngt1 is an integer ), then (a) I(...

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