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If l^r (x) means log log log... x, the l...

If `l^r (x)` means log log log... x, the log being repeated r times, then `int [x.l(x).l^2(x).l^3(x)...I^r(x)]^(-1) dx` is equal to

A

`1^(r+1)(x)+C`

B

`(1^(r+1)(x))/(r+1)+C`

C

`1^(r)(x)+C`

D

None of these

Text Solution

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The correct Answer is:
A
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