- #1
BilloRani2012
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Homework Statement
Consider the vectors p = xi + 5j + yk and q = 2i - 4j + 3k
a) for what values of x and y are the vectors p and q parallel?
b) If x = -7 for what value of y are the vectors p and q perpendicular? Given that x and y take these values find a third vector that is perpendicular to both p and q.
Homework Equations
The Attempt at a Solution
This is what i have done:
(2, -4, 3)
so, -4c = 5
therefore c = -5/4
so i checked for x and y:
x = -5/4 * 2 = 2
y = -5/4 * 3 = 3
so the values of x and y that i got were: x = 2 and y = 3
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