2-x-1-x-dx-2ln-3-ln-2-please-help-me-to-solve-for-x-

Question Number 63378 by minh2001 last updated on 03/Jul/19

\underset{2}{\int^{x}} \frac{1}{x} d x = 2 l n (3) - l n (2)

p l e a s e h e l p m e t o s o l v e f o r x

Answered by MJS last updated on 03/Jul/19

the borders must be independent of the integral variable

\underset{2}{\int^{x}} \frac{d t}{t} = \ln x - \ln 2

\Rightarrow \ln x = 2 \ln 3 \Rightarrow x = 9

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