Role-Play Scenario Tips continued Scenario #3 â Long Term Employee With Some Performance Issues Show appreciation. (âWe value your stability and reliability.â) Ask how the employee thinks things are going. His/her responses may help you decide how to proceed. Remember to focus on performance, not the person. Give specific examples illustrating how the employeeâs performance did not meet your expectations.
The Law of Cosines (also called the Cosine Rule) is very useful for solving triangles: It works for any triangle: a, b and c are sides.
I can use a trig identity to get a quadratic in cosine: cos2(x) + cos(x) = sin2(x) cos2(x) + cos(x) = 1  cos2(x) 2cos2(x) + cos(x)  1 = 0. (2cos(x)  1)(cos(x) + 1) = 0. cos(x) = 1/2 or cos(x) = 1. The first trig equation, cos(x) = 1/2, gives me x = 60 and x = 300. The second equation gives me x = 180. I can The sine wave is zero at 0, 180, and 360. The cosine is 1/2 at 60, and thus also at 360  60 = 300.