Question

Given u = (-3, 5) and v = (-5, -1), determine 4u - 2u I got (-10, -10) but I'm not sure if this is right. Help?

Answer 1

this is trig btw and im dealing with vectors

Answer 2

I guess this is 4u - 2v

4(-3, 5) = (-12, 20)
2(-5, -1) = (-10, -2)
(-12, 20) - (-10, -2) = (-2, 22)

Answer 3

Oh, I see what I did wrong, thank you

Answer 4

It was a pleasure to help you