Q.30. If A=0/LPlumn rule for mSolution : By the row-by-column rule for.1100AB=(r+23+370.x + 1 v + 2-AB =[ 0.8 + 0y +1:ButHence by the definition of equality of matx + 2 y + 3= = 60x + 1y+2: = 30x + Oy + 12 = 1.Hence == 1. y = 1. x = 1.1 -2 311 37B= -1 02.31. If 4-|-4 255(24)(1.1+(-2)(-1)+3.2.Solution : AB =

Q.30. If A=0/LPlumn rule for mSolution : By the row-by-column rule for

1.	Q.30. If A=0/LPlumn rule for mSolution : By the row-by-column rule for.1100AB=(r+23+370.x + 1 v + 2-AB =[ 0.8 + 0y +1:ButHence by the definition of equality of matx + 2 y + 3= = 60x + 1y+2: = 30x + Oy + 12 = 1.Hence == 1. y = 1. x = 1.1 -2 311 37B= -1 02.31. If 4-\|-4 255(24)(1.1+(-2)(-1)+3.2.Solution : AB =
Answer» 1(-10)-2(5-12)+3(2+8)=-10-2(7)+3(10)=-10-14+30=30-24=6