karens Messages 7 Reaction score 0 Thread starter Jun 7, 2010 #1 nvmnd - solved Last edited: Jun 7, 2010
Coto Messages 307 Reaction score 3 Jun 7, 2010 #2 Hey karens, Well you have the formula written above. Why don't you start by showing us what [tex]f_x (2,1), f_y (2,1)[/tex] are and what [tex]a, b[/tex] should be considering your unit vector [tex]\left(\frac{3}{5}, \frac{-4}{5}\right)[/tex].
Hey karens, Well you have the formula written above. Why don't you start by showing us what [tex]f_x (2,1), f_y (2,1)[/tex] are and what [tex]a, b[/tex] should be considering your unit vector [tex]\left(\frac{3}{5}, \frac{-4}{5}\right)[/tex].