Question

find the value of t please fnd fastly

Answer 1

at t=1,
x(A)=3i   y(A)=1j
x(B)=6i  y(B)=5j
distance between A and B is x=x(B)-x(A)=6i-3i=3i    y=y(B)-y(A)=5j-1j=4j
Distance between them is a vector 3i+4j=$\sqrt{ 3^{2} + 4^{2} }$=5