00:01
So we're given the two vectors, which i just labeled u and v.
00:04
It's negative 4i plus 3j and 8i negative 6j.
00:10
So i'm just going to rewrite these as negative 4, 3, and 8 negative 6.
00:19
We are going to find out if they are orthogonal.
00:21
Orthogonal just means that they differ.
00:24
When you do the dot product, it would equal 0, but they differ by 90 degrees.
00:29
Another word for that is perpendicular.
00:33
So we're going to do the dot product.
00:35
Again, if this is equal to zero, then it does.
00:38
It is orthogonal...