Answer to Question #55741 in Calculus for JOSEPH

Question

3 If f(x) is a function of x and df/dx exists at x = a, then f(x) is
A. continuous at x = 0 B.discontinuous at x = 0 C. continuous at x = a D. discontinuous at x = a

5. If y = arcsin x, then d/dx (y) is
6 If y = arcsin x, then dx/dy is
7 If y = arcsin x, then x is