Try another version of this question Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Find the dot product of the following vectors `vec u` and `vec v`.
[Graphs generated by this script: initPicture(-6,6,-6,6);axes(1,1,null,1,1);marker='arrow';stroke = 'red';line([0,0],[2,-4]);stroke = 'blue';line([0,0], [-3, 4])]
`vec u` `\cdot` `vec v` =
Enter DNE for Does Not Exist, oo for Infinity -22