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If f(x)=underset(1)overset(x)int (log t)...

If `f(x)=underset(1)overset(x)int (log t)/(1+t) dt"then" f(x)+f((1)/(x))` is equal to

A

`1/4 (log x ) ^(2)`

B

`log x`

C

`1/2 (log x) ^(2)`

D

`1/4 log x ^(2)`

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The correct Answer is:
C
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DISHA PUBLICATION-INTEGRALS -EXERCISE-2 CONCEPT APPLICATOR
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  17. The value of int (sqrt ( log 2 )) ^(sqrt( log 3 )) (x sin x ^(2))/( si...

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  18. The value of int((1+x))/(x(1+x e^(x))^(2))dx, is equal to

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