The answer is (c)
The projection of vector A onto vector B is the dot product A·B, divided by the magnitude squared of vector B, multiplied by vector B.
A·B = 9 + 4 = 13
|B| * |B| = 10
I just come to see if you will give a best answer ( or a thank you ) for these answers, this time !
You never do it…
By the way do you know it costs nothing ?
Source(s): Coach in politeness and courtesy