Question

g

Answer 1

just the answer please.

Answer 2

Find vector AB first AB=OB-OA
then use the formula \[\sqrt{a ^{2}+b ^{2}+c ^{2}}\] to find magnitude

Answer 3

\[AB=OB-OA=(3,0,4)\Rightarrow |AB|=\sqrt{3^2+4^2}=5\]