722=dd +(I)    1Courier New1Symbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier NewTimes New Roman1Courier NewX0LVX0LVX0LVX0LV?/ <```@@@?~~~~~ԱޱޱԱ޿޿ph (((Pdd{  d<  p {2  @x?0Ooչ@?Թpֹ@i 5yWZ6Yh@???0g @M$ @5 @zfe(VhfffffSz?fe(V?hfffff@033333??@^ߛOw?HzG???tXIc@LAV@@?@ @@@O?wC~UwC~?@?@?@ov-nr?v-n?@@dddddddddddddddddddddddddddddddddddddddd 02??h!@$$$Uy@??`Т=`ТG`A`Т?@`Т?????$cx#b$d$X|fc$2=eʓacos(t)asin(t)00.00000;6.28319QQ02??h!@$$$Uy@??`Т=`Т_uG`A`Т?@`Т?*kuu????(IF0Ri0u\!`10lg283acos(t)asin(t)-2a^4cos(t)sin(t)^30.00000;6.2831952???$$$1AovdЩ?91v??P(\?\10?N`Gz?|? `???Gz?\10? `bi ! K!l6ra/2 sqrt(3)a/2-a^4*3sqrt(3)/8+(x,y,z) = (a/2,sqrt(3)a/2,-a^4*3sqrt(3)/8)52???$$$6d%RVwfaG???P(\?| `?Gz?\10N`????Gz?\10 `?V`Hl,t7;a/2 -sqrt(3)a/2a^4*3sqrt(3)/8+(x,y,z) = (a/2,-sqrt(3)a/2,a^4*3sqrt(3)/8)52???$$$-a/2 sqrt(3)a/2a^4*3sqrt(3)/8+(x,y,z) = (-a/2,sqrt(3)a/2,a^4*3sqrt(3)/8)52???$$$ 3Seo&???Gz|N`P(\\10 `???Gz\10 `8h*X0  z*Hxvv,y-a/2 -sqrt(3)a/2-a^4*3sqrt(3)/8-(x,y,z) = (-a/2,-sqrt(3)a/2,-a^4*3sqrt(3)/8)42???$$$??(\.׺.Ϣ?4;Աp= ף?eOIeM?o????l4? <Hq*5औ=PpTyBa/2 sqrt(3)a/20a/2;seg (a/2,sqrt(3)a/2,0) to (a/2,sqrt(3)a/2,-a^4*3sqrt(3)/8) sqrt(3)a/2-a^4*3sqrt(3)/842???$$$??Աp= ף.׺.Ϣ?o(\?eOIeM?4;????l4? /`vĩ} |4H0-a/2 sqrt(3)a/20-a/2<seg (-a/2,sqrt(3)a/2,0) to (-a/2,sqrt(3)a/2,a^4*3sqrt(3)/8) sqrt(3)a/2a^4*3sqrt(3)/842???$$$??(\eOIeMoԱp= ף?.׺.Ϣ4;????l4? z0NQL4p{o#MK\V>@[$@Times New Roman x = acos(t); y = asin(t); z = 0E@((^E@1Courier New 8ԟx = acos(t); y = asin(t); z = -2a^4cos(t)sin(t)^3@E s}pˀ@ W.M@1Courier New ԟ(x,y,z) = (a/2,sqrt(3)a/2,-a^4*3sqrt(3)/8) E*Ѐ?\=>Pqz@1Courier New ՟(x,y,z) = (a/2,-sqrt(3)a/2,a^4*3sqrt(3)/8) E7u?]T/@1Courier New `֟(x,y,z) = (-a/2,sqrt(3)a/2,a^4*3sqrt(3)/8) ECd?>#Wa@1Courier New ן(x,y,z) = (-a/2,-sqrt(3)a/2,-a^4*3sqrt(3)/8) E(K\:Yo?,ƯX4wlb@1Courier New ןseg (a/2,sqrt(3)a/2,0) to (a/2,sqrt(3)a/2,-a^4*3sqrt(3)/8)E(K\:Yo?,ƯXg&ca@1Courier New ؟seg (-a/2,sqrt(3)a/2,0) to (-a/2,sqrt(3)a/2,a^4*3sqrt(3)/8)EЩcA0?w@mJ7d@1Courier New @ٟseg (a/2,-sqrt(3)a/2,0) to (a/2,-sqrt(3)a/2,a^4*3sqrt(3)/8)E┋@`1^He@1Courier New ٟ seg (-a/2,-sqrt(3)a/2,0) to (-a/2,-sqrt(3)a/2,-a^4*3sqrt(3)/ExF@E:Tȷ)Yfr@1Courier New ڟ z = -2xy^3E> v$ <6E@rK@1Courier New @@@h!@