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If f(x)=|(sin x+sin x 2x+sin3x,sin2x,sin...

If `f(x)=|(sin x+sin x 2x+sin3x,sin2x,sin3x),(3+4sinx,3,4sinx),(1+sinx,sinx,1)|,` then the value of `int_0^(pi/2) f(x) dx` is

A

`3`

B

`0`

C

`2//3`

D

`1//3`

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-DEFINITE INTEGRALS-SOLVED EXAMPLES (LEVEL 2 ) Single Correct Answer Type Questions
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  15. int(-1)^(1)(d)/(dx)[tan^(-1)((1)/(x))]dx=

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  16. T h ev a l u eofint0^pi(sin(1+1/2)x)/(sin(x/2))dxi s ,n in I ,ngeq0 ...

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  17. The equation of tangent to the curve y=int(x^2)^(x^3)(dt)/(1+t^2) at x...

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  18. The mean value of the function f(x) = (1)/( x^2 + x) on the interval [...

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