Jawapan

2014-10-24T20:21:00+08:00
Kalu matrik f4 and f5..mdah je... Cth soalan: 2x+x-5x=-2 y-3/2y+2y=-3 uat msuk dlm frmula ni. -->[a b][x]=[e] [c d][y]=[f] --->(x)=1/ad-bc[d -b][e] (y)= [-c a][f] ---->[x] [Y]= * guna klkulator..tkan mode 3kali,plih eqn..