Combining Vectors Geometrically

 Winning streak =

Find which relationship the three vectors satisfy
  C = - A + B
  C = + A - B
  C = - A - B
  C = + A + B

Drag the vectors to wherever you wish, then click one of the four choice buttons.
Click "Score" to see how you did. If you get it wrong you must "Reset" to be allowed to continue.
You must get a winning streak of 5 or more before the problem is considered "done".
If you have difficulties, you may wish to revisit the "Tutorial Summary".

Authored by Kevork Spartalian, University of Vermont, based on Davidson College physlets.