Posted by doruntina on Tuesday, January 29, 2013 at 6:27pm.
be found arithmetic series
3a2a6=a2
a3+a4=19

math  bobpursley, Tuesday, January 29, 2013 at 6:31pm
an=ao +n*d
a2=ao+2d
a6=ao+6d
a3=ao+3d
a4=ao+3d
substutite all those, and find ao, and d.