Question

Find the unit vector of R vector = 2i cap — 3j cap​

Answer 1

Explanation:

So we have to find magnitude of this vector first

that will be √(4+9)

i.e. √ 13

so unit vector is (2i - 3j) / √13

Answer 2

unit vector =2/√13 i cap - 3/√13 j cap

Explanation:

|R vector| = √{(2)^2 +(-3)^2}

=√(4+9)

=√13

unit vector = R vector/ |R vector|

=(2i cap - 3j cap)/√13

=2/√13 i cap - 3/√13 j cap