Math Is Fun Forum

juantheron

Member

Registered: 2011-10-19

Posts: 312

vector

The vector

bisects the angle between the vectors

and

.

determine a unit vector along

.

Nehushtan

Member

Registered: 2013-03-09

Posts: 957

Re: vector

Let the angle between

and

be

. Taking the dot product gives

Then the angle between

and

is

and taking the dot product gives

Thus you can take any x, y satisfying the last equation and z such that

– for example,

,

,

.

---

240 books currently added on Goodreads