[a] Use the mean value theorem to prove that for 0

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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COURSE: Mathematical/Real Analsys (MVT2)

TOPIC: Mean Value Theorem

### Mean Value Theorem and Inequalities

**[a]** Use the mean value theorem to prove that for \(0 < a < b\) we have:

\[
\left(1 - \frac{a}{b}\right) < \ln\left(\frac{b}{a}\right) < \left(\frac{b}{a} - 1\right)
\]

**[b]** Use part [a] to prove that:

\[
\frac{1}{6} < \ln(1/2) < \frac{1}{5}
\]
Transcribed Image Text:### Mean Value Theorem and Inequalities **[a]** Use the mean value theorem to prove that for \(0 < a < b\) we have: \[ \left(1 - \frac{a}{b}\right) < \ln\left(\frac{b}{a}\right) < \left(\frac{b}{a} - 1\right) \] **[b]** Use part [a] to prove that: \[ \frac{1}{6} < \ln(1/2) < \frac{1}{5} \]
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