Question

Find vectors in 3D whose x component is 2 and z component is 2 and the length is 3.

Answer 1

what I don't understand you que.......

Answer 2

Yeah I don't either, my professor posted it as a question that could possibly be on the quiz.

Answer 3

strange

Answer 4

does he wants to watch vector in 3D

Answer 5

He posted this as an explanation for the question...

Answer 6

Although it does nothing for me...

Answer 7

strange professor

Answer 8

this is the pythagorean theorem in 3 dimensions instead of 2. if your vector is \(<i,j,k>\) with length \(l\) then
\[l = \sqrt{i^2+j^2+k^2}\]