Answer:
a) 2x2 b)3x3 c) Not possible d) 2x3 e) 3x2 f) 3x3 g)Not possible h)3x2
Step-by-step explanation:
-> we can only add matrices with same size
-> we can only multiply when columns of first equal to rows of second
-> nxm multiplied by pxq gives nxq eg 3x2 mul 2x2 gives 3x2
-> addition and mul by const number dont change the size
So considering the above facts :-
a) AB+C = [(2x2)(2X2)]+(2x2)=(2x2)+(2x2)=2x2
b) 3GF =3[(3x3)(3x3)]=3(3x3)=3x3
c)CK+B= [(2x2)(2x3)]+(2x2)=(2x3)+(2x2) which is not possible (see point 1)
d)CK+H =as CK is (2x3) so (2x3)+(2x3)=(2x3)
e)EMC=[(3x3)(3x2)](2x2)=(3x2)(2x2)=3x3
f)GLH=[(3x3)(3x2)](2x3)=(3x2)(2x3)=3x3
g)HLG=[(2x3)(3x2)](3x3)=(2x2)(3x3)= not possible(see point 2)
h)2EL+5MB=2[(3x3)(3x2)]+5[(3x2)(2x2)]=(3x2)+(3x2)=3x2
