# EVNREV09 - R eview Exercises for Chapter 9 5 4 3 2 461 50 a...

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Review Exercises for Chapter 954.A21222232 sin2d4 22132 sin2d3.3756.(a)When Therefore,Thus,r1e2a1ecos.a1e2ed.a1e1eeda1eed1e0, rcaeaaa1e.red1ecos(b)The perihelion distance is When The aphelion distance is When r1e2a1ea1e.0,acaeaa1e.r1e2a1ea1e.,acaeaa1e.58.Perihelion distance:Aphelion distance:a1e1.5044861109kma1e1.3495139109kmr1e2a1ecos1.42279250510910.0543 cose0.0543a1.427109km60.Perihelion distance:Aphelion distance:a1e43.416106mia1e28.582106mir1e2a1ecos34.47210610.206 cosa36.0106mi, e0.20662.x2y2bxay0 represents a circle.x2y2aybxr2arsinbrcosrasinbcosReview Exercises for Chapter 94612.Matches (b) - hyperbola4.Matches (c) - hyperbola6.ParabolaVertex:2, 6y624 2x2y212y368x2036x12168124yy212y8x20050.r2912516 cos2a4, c5, b3, e5452.r21134 cos2a2, b1, c3, e32
462Chapter 9Conics, Parametric Equations, and Polar Coordinates
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Review Exercises for Chapter 946320.(a)Focus:0, 50x24 50yx2200yy1200x2(b)S21000x1x210,000dx38,294.491y21x210,000y1100xy1200x222.(a)(b)Disk:(c)Disk:aba2ca2ca2c2a4arcsinca2b22abearcsine4ba2a0a4c2x2dx2ba2ccxa4c2x2a4arcsincxa2a0S2 2a0baa2x2a4a2b2x2aa2x2dxV2a0b2a2a2x2dx2b2a2a0a2x2dx2b2a2a2x13x3a043ab22a2ab2clncae22a2b2eln1e1e2ab2cb2cb2c2b4lncbbb2c2b4lnb24ab2b0b4c2y2dy2ab2ccyb4c2y2b4 lncyb4c2y2b0S4b0abb2y2b4a2b2y2bb2y2dy43a2bV2b0a2b2b2y2dy2a2b2b0b2y2dy2a2b2b2y13y3b0A4 a0baa2x2dx4ba12xa2x2a2arcsinxaa0ab24.Parabola111234567234567yxtx4yx42xt4, yt226.Ellipse2212345673112345678yxx329y22251x332y2521x33 cos , y25 sin 28.6442466246