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rArrunderset(0)overset(oo)int[(2)/(e^(x)...

`rArrunderset(0)overset(oo)int[(2)/(e^(x))]dx` (where [*] denotes the greatest integer function) equals

A

0

B

`ln 2`

C

` e ^(2)`

D

`2e ^(-1)`

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The correct Answer is:
B
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MOTION-DEFINITE INTEGRATION -EXERCISE -2 (LEVEL-I)
  1. int0^(10pi) |sin x| dx is

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  2. The value of int (-1) ^(3) | 1- x ^(2) | dx is -

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  3. rArrunderset(0)overset(oo)int[(2)/(e^(x))]dx (where [*] denotes the gr...

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  4. int0^sqrt2 [x^2]dx

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  5. If f (x) = int (0) ^(x) sin [2x] dx then f ( pi//2) is (where [**] de...

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  6. f(x)=Minimum{tanx,cotx}AA x in(0,pi/2) Then int0^(pi/3)f(x)dx is equal...

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  7. The value of int (1) ^(2) ([x ^(2) ]- [x] ^(2) dx is equal to (where [...

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  8. If f(x)={e^(cosxsinx ,for|x|lt=2)2,ot h e r w i s e ,t h e nint(-2)^3f...

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  9. The value of int0^(pi/3) [sqrt3 tanx]dx( where [.] denotes the greates...

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  10. T h ev a l u eofint(-2)^1[x[1+cos((pix)/2)]+1]dx , where [.] denotes ...

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  11. int (0)^(2) x ^(3) [1+ cos ""(pix)/(2)] dx is (where [**] denotes the ...

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  12. Let f(x)=minimum {|x|,1-|x|,1/4} for xepsilonR then the value of int-1...

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  13. If [x] dentoes the greatest integer less than or equal to x, then the ...

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  14. If f(n)=(int0^n[x]dx)/(int0^n{x}dx)(where,[*] and {*} denotes greatest...

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  15. int (0) ^(2npi) (|sin x | - [|(sin x )/(2) | ]) dx is equal to (where ...

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  16. The value of int (0) ^([x]){x} dx is

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  17. If f(x) and g(x) are continuous functions satisfying f(x) = f(a-x) an...

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  18. If f(a+b - x) = f(x) , then int(a)^(b) x f(x) dx is equal to

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  19. If int(0)^(pi) x f (sin x) dx = A int (0)^(pi//2) f(sin x) dx , then A...

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  20. If f(x)=(e^(2))/(1+e^(x)),I(1)=overset(f(a))underset(f(-a))int xg{x(1-...

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