Are the direction vectors d=(0, -3, -2) and e=(0, 3, 2) the same?
Can you take out -1 and write (0, -3, -2) as (0, 3, 2)? Or does this make it another direction?
Can you take out -1 and write (0, -3, -2) as (0, 3, 2)? Or does this make it another direction?
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(0, -3, -2) = -(0, 3, 2). The first one is the negative of the second. That means it's exactly the opposite direction.
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It makes it another direction.