sir Share with your friends Share 1 Neha Sethi answered this If the gerneral term in the above expansion contains x2y4z6 then r+t=2,r+s=4 and s+t=6Also, r+s+t=6Solvind these equation, we getr=0,t=2 and s=4Coefficient of x2y4z6 =6!0! 2! 4!=6×5×4!2×4!=15 0 View Full Answer