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I can't understand the wording for this vector < david_21_floyd > 09/13
21:29:09
problem. It shouldn't be hard I just don't understand what they are
asking here goes:
Express the given vector in terms of its coordinates:
=====
The vector from the origin to the initial point of the vector to
(6,4,-1) in the opposite direction and with twice the length of
(-2,3,4)
=====
So the initial point of the vector to (6,4,-1) should be the origin
because they didn't specify that it didn't, so if no initial point is
mentioned, it is assumed (from what I have been taught) that the
initial point is the origin.
Of course opposite the direction and twice the length of (-2,3,4) is
just -(-2,3,4) for direction and sqrt((-2^2+3^2+4^2)) for length unless
I'm mistaken.
But that leaves the question of of what initial point of the vector to
(6,4,-1) is if it is not the origin, and then this is where the vector
we are looking for points towards.
I'd appreciate your guys help in interpreting the question so I can
work towards a solution.
Thanks all,
David
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