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

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162 Def<strong>in</strong>ite Integrals [Cft. 5<br />

expressed, respectively, by<br />

the formulas:<br />

b b<br />

1) Vx =ji J y*dx\ 2) V Y =2n J xr/dx*).<br />

a a<br />

Example 1. Compute the volumes of solids formed by the revolution of a<br />

figure bounded by a s<strong>in</strong>gle lobe of the s<strong>in</strong>usoidal curve # = s<strong>in</strong>x and by the<br />

segment O

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