Vectors A and B are defined in terms of xy and z as If AB th

Vectors A and B are defined in terms of x,y, and z as

If A=B, then find the values of x.y, and z and show that :

Solution

if A=B
then
z=1
x+y = 3y+z = 3y+1 -> x=2y+1
2x+y= 5x-3   ->     4y+2+y=10y+5-3 ->    5y=0 ->y=0   -> x=1

to show that something =13

4| 5/4i +3k| =13/4*4=13