Q. All four of the vectors below are added to vector E. Positive angles are measured counter-clockwise from the x axis. A = 2 m î + 3 m ĵ B = -7 m î -10 m ĵ C = 3 m at 62 ° D = 8 m at -226 ° a) What is C·D? C.D = |C| |D| cos theta I did this. 3* cos 62 + 8 cos -226 , but the answer is wrong b) Vector F is the cross product of vectors A and B (= A X B). What is the z component of vector F? The answer is one, but how F = A X B Find the cross product by evaluating the determinant of vectors A & B. Then what!!