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Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

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84 Extrema and the Geometric Applications of a Derivative [Ch. 3<br />

Example<br />

tion<br />

2. Determ<strong>in</strong>e the <strong>in</strong>tervals of <strong>in</strong>crease and decrease of the func-<br />

Solution. Here,<br />

\2 0, hence, y'>Q <strong>in</strong><br />

the <strong>in</strong>terval (00, 1) and the function <strong>in</strong> this <strong>in</strong>terval <strong>in</strong>creases Similarly,<br />

we f<strong>in</strong>d that y'

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