Hi!I was not really into maths before but i am interested now.I was trying to solve a vector problem.To find a unit vector between .Why we have to put a √13?Probably silly question but still...hope you help me a little bit...thanks!

Question

Hi!I was not really into maths before but i am interested now.I was trying to solve a vector problem.To find a unit vector between <2,3>.Why we have to put a √13?Probably silly question but still...hope you help me a little bit...thanks!

doughnuttable · Answer

The length of the vector <2,3> is $$\sqrt{13}$$ To make it into a unit vector, divide by its length. It will point in the same direction but its length is now 1.

anonymous · Answer

thanks for your help! I hope slowly-slowly to get improved at some point :)