- #1
xphloem
- 10
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Homework Statement
Consider the two vectors L= i +2j+3K
K=4i+5j+6k
Find scalar 'a' such that:
L - aK is perpndicular to L.
Homework Equations
if two vectors are perpenicular dot product=0
The Attempt at a Solution
(i+2j+3k).{(1-4a)i+(2-5a)j+(3-6a)k}=0
I get three values of a here. but none satisfies th whole equations at the same time. Please help me