Question

pre calc help .-.

Answer 1

Let u = <5, 6>, v = <-2, -6>. Find -2u + 5v.

Answer 2

Is it u vector = 5i + 6j and v vector = -2i - 6j

Answer 3

n<a, b> = <n⋅a, n⋅b>

Answer 4

<a, b> + <c, d> = <a+c, b+d>

Answer 5

that helps literally none considering i have no abcord nor do i have an n

Answer 6

a, b, and n is just some constant,
n<a, b> = <n⋅a, n⋅b> means you can distribute number outside vector into each number in vector

what I am trying to say is that if you have like -2u, which is -2<5, 6> = <-2⋅5, -2⋅6> because you distribute -2 in vector

Answer 7

lol okay so its -10,-12

Answer 8

@geerky42

Answer 9

yeah. -2u is <-10, -12>.

Do you know what 5v is?

Answer 10

-10, -30

Answer 11

so its -20, -42 right?

Answer 12

Yep, now what is <-10, -12> + <-10, -30>?