What is the value, in degrees, of an angle measuring π/4 radians?
+
What is the equation of an exponential function that has a horizontal stretch of 2, vertical compression of 3/4, and passes through the points (1,2) and (3,18)?
+
Math question: What is the fourth-order derivative of f(x) = 3x^5 + 2x^3 - x^2 + 7x + 9?