00:01
So we want to refer to the vectors that are given to us, b is 3 -4 -1, c is 1 -4 -1, and d is negative -1, negative -1, 3.
00:09
And we want to find 3b minus 2c plus d.
00:14
These are all vectors.
00:17
So that's going to give us 3 times b, which will be, so 3 times 3 -4 -1 minus 2 times 1, 1, negative 4, 1, plus 3, or just plus d.
00:40
So that's plus negative 1, negative 1, negative 3.
00:44
So when we simplify this, that's going to be 9, 12, 3, plus a negative 2, 8, negative 2, plus negative 1, negative 1, negative 3.
00:58
So let me combine all these components.
01:00
We have 9 minus 2 minus 1.
01:02
It's going to give us 6.
01:04
Negative, or 12 plus 8 minus 1, that's going to be 19.
01:09
And then we have 3 minus 2 minus 3, so it's going to be a negative 2...