A+B = 2i-7j
tanθ = -7/2 in QIV
A-B = 4i+5j
tanθ = 5/4 in QI
Consider the two vectors A with arrow = 3 i − j and B with arrow = − i − 6 j.
Calculate the directions of A with arrow + B with arrow and A with arrow − B with arrow.
A with arrow + B with arrow ° (counterclockwise from the +x axis)
A with arrow − B with arrow ° (counterclockwise from the +x axis)
1 answer
1 answer