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

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Answers 457<br />

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2589. cos (jc-|-a)=cos a xsm a ^ cos a + %r sma+'-rr cos a -j- ...<br />

1<br />

1 -o^ + TTi-" +(- )""<br />

^Z 3Z 7* A<br />

^5S<br />

o. 2591<br />

+ --- ~2

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