What is the common characteristic between the exponential functions f(x) = 10^x and f(x) = e^x that allows both functions to approach infinity as x approaches positive infinity?
+
What is the radian measure of an angle that subtends an arc of length 3π units?
+
Math Question: In a triangle ABC, if angle A is 50°, angle B is 70°, and side c is 8 units, find the length of side a.