On Tuesday, no one came to my office hours.
On Wednesday, there was a 110 student with a question regarding the angle below horizontal of a ball rotating on a string. He set the problem up correctly, but he was not able to do the algebra. I showed him a trick for dealing with inverse trig functions inside of other trig functions. Using the values inside the inverse trig function, it is possible to create a right triangle and solve the unknown values with the pythagorean theorem. This link shows the process at the bottom: http://www.regentsprep.org/regents/math/algtrig/att8/inversetrig2.htm
Corey Williams
PHYS 0111 (Lynch)
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