Question

8i-j+4k Find a unit vector that has the same direction as the given vector. First i set vector a=8i-j+4k, than make up b as unit vector with b=ai+bj+ck. Now what?

Answer 1

to make a vector into a unit vector just scalar divide it by it's magnitude
what is the magnitude of \(\vec a\) ?

Answer 2

Thats it?.... where was i <<

Thanks

Answer 3

no prob :)