Give the components of the vector whose length is 10 and whose direction opposes the direction of [ -4, 3 ]
Can I get some help pls?
(we add pi because theta is in the 2nd quadrant)
We want our new vector to be in the opposite direction, so add pi again.
One could argue that adding pi twice isn't necessary, and finding arctan (3/-4) would give us the angle we're looking for. But I like angles to be in .
Our new vector is
EDIT: This long-winded way to solve the problem was deliberate.