Question 304855
Unit vector u = v/|v|....|v|=magnitude of v


v=2i-5j ----> a=2, b=-5

|v| = sqrt(2^2+(-5)^2)=sqrt(4+25)=sqrt(29)


u = v/|v| = (2i-5j)/sqrt(29) = 2/sqrt(29)i - 5/sqrt(29)j


Answer is A