math (Matrix)
posted by MARYSE on .
solve the equations by using
a) the adjoint matrix
b) elementary row operations
i) x+y+z=6
2xy+z=3
x+4yz=6
ii) 3p3q+r=1
3p+5q2r=1
p2q+r=3
iii)12a+b+17c=14
2ab+3c=5
8a+b13c=3
thanks sir/madam

X=3.Y=5
