Math question: A right triangle has one angle measuring 30 degrees, and the side opposite to this angle has a length of 5 units. What is the length of the hypotenuse?
+
What is the integral of x^n dx, where n is a constant?
+
What is the derivative of f(x) = 3x^4 - 2x^3 + 5x^2 - 7, with respect to x?