Question: Find the amplitude, period, phase shift, and range for the cosine function f(x) = cos(x).
+
What is the measure of angle A in a triangle if a = 8, b = 13, and angle B = 45°?
+
Q: In a triangle ABC, the measure of angle A is 70 degrees and the measure of angle B is 45 degrees. If the length of side AC is 10 units, what is the length of side BC?