JEE Mains Model Paper 5

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Question : 81 of 90

Marks: +1, -0

For x > −1, let f(x) =

π∕4

∫

0

loge (1 + x tan z) dz. Then value of f (

1

2

) - f (

1

3

) equals

π
4
loge(
9
8
)
π
8
loge(
9
8
)
π
9
loge(
8
9
)
π
8
loge(
3
2
)

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