Posted by **caitlin** on Tuesday, September 28, 2010 at 1:21pm.

Consider two vectors A = 4i - 4j and B = -i - 8j .

(a) Calculate A + B.

(b) Calculate A - B.

(c) Calculate absolute value(A + B).

(d) Calculate absolute value(A - B).

(e) What is the direction of A + B? (from the +x axis)

(f) What is the direction of A - B? (from the +x axis)