Question

V*w, vectors: r = <8, 1, -6>; v = <6, 7, -3>; w = <-7, 5, 2>

Answer 1

Explanation:

Here we have to compute the dot product:

$v\cdot w$

We know that:

$v = \\ \\ w =$

So for any two vectors:

$A = \\ \\ B =$

The dot product:

$A\cdot B=x_{1}y_{1}+x_{2}y_{2}+z_{1}z_{2}$

Therefore:

$v\cdot w=(6)(-7)+(7)(5)+(-3)(2) \\ \\ \boxed{v\cdot w=-13}$