1. vector

How do I solve this?
$Given\ c\times{d}=2i+3j, determine \ c\cdot{(2i+3j)}$

2. Originally Posted by ashes
How do I solve this?
$Given\ c\times{d}=2i+3j, determine \ c\cdot{(2i+3j)}$
The cross product of two vectors is a vector at right angles to both of
the vectors.

So The dot product of either of these two vectors with the cross product
is zero.

So:

$c\cdot (2i+3j) =0$

RonL