Vectors and have scalar product -7.00 and their vector product has magnitude 3.00.
What is the angle between these two vectors?
|A| |B| cosθ = -7
|A| |B| sinθ = 3
The Attempt at a Solution
tanθ = (-3/7)
When I enter tan-1(-3/7) into my calculator, I get -23.199, but when I enter 23.199 into MasteringPhysics, it tells me that I am incorrect. What am I doing wrong?