SIMPLE MATRIX QUESTION PLEASE HELP!! are the given vectors normal? a = (5,-2) and b = (6,15)
Stacey Warren - Expert brainly.com
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is the question asking if they are perpendicular to each other?
@greg_d all it is asking is if it is "normal"
I can't determine what or why or how it would be considered normal.. the rest of the homework was working on matrices
if the question is, are they "normal" (as perpendicular) to each other, you can use the dot product...
This is honestly the last problem and i don't know how i could do that..
ok, IF that is the question, we need to multiply them using the dot product.
with theta beign the angle between the vectors.
if that product is 0, said angle is 90º and they are indeed "normal" to each other
could you possibly solve that for me so i can use it next time i see something like this?
Let's say you had the two vectors
u = <1,2>
v = <5,7>
The dot product of u and v is
u dot v = 1*5 + 2*7 = 5 + 14 = 19
Since the dot product is not 0, this means that u and v are not perpendicular