19992000 2000.61150120 60 1123XXXXXX1XXXXXX12coscos=cos(+)+cos(-)XXXXXX1-2sinsin=cos(+)-cos(-)XXXXXX11411041B1C1D1ABC7DXXXXXX1yA12B2C7D112A90B60C15D3011htB1C2D3013abBCDAB3C3D 90 XXXXXX2441615f2x-102fx_2 z_XXXXXX2 674192 EMBED Equation.2 2132212241445aCFl1CABAFFB=1 19992000 20012345678910111213144163 EXXXXXX4sinA+sinC+sinAcosC+cosAsinC=3sinBsinA+sinC+sinA+C=3sinB44 EMBED Equat-1x0x2a1x|-1x0x20XXXXXX4XXXXXX4XXXXXX55 rh=13y5 EMBED Equa5 EMBED Equa24P5 EMBED Equa-xy=6 EMBED EquaXXXXXX6 Oc0
