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Integrate the functions: 1x(logx)m, x>0,m≠1

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Question

Integrate the functions:

`1/(x(log x)^m),  x > 0, m ne 1`

Sum
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Solution

Let `I = int 1/(x (log x)^m) dx`

Put log x = t

`1/x dx = dt`

`therefore I = int dt/t^m`

`= int t^(-m) dt = (t^(-m + 1)/(- m + 1)) + C`

`= (log x)^(- m + 1)/(1 - m) + C`

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Chapter 7: Integrals - Exercise 7.2 [Page 304]

APPEARS IN

NCERT Mathematics Part 1 and 2 [English] Class 12
Chapter 7 Integrals
Exercise 7.2 | Q 14 | Page 304

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