Question

If v1 = (2,4) and v2 = (-1,5), then v1*v2 is..

Answer 1

...(-2,20)?

Answer 2

assuming that's the dot product

v1 dot v2 = 2*(-1) + 4*5

v1 dot v2 = -2 + 20

v1 dot v2 = 18

Note: the result of a dot product is ALWAYS a scalar (and not a vector)

Answer 3

Thank you... so much!

Answer 4

yw