SAT2数学Level 1习题一Question #1: If f(x) = x and g(x) = x, x 0, what are the solutions of f(x) = g(x)? x = 1x1 = 1, x2 = -1x1 = 1, x2 = 0x = 0x = -1Question #2: What is the length of the arc AB in the figure below, if O is the center of the circle and triangle OAB is equilateral? The radius of the circle is 9(a) (b) 2 (c) 3 (d) 4 (e) /2Question #3: What is the probability that someone that throws 2 dice gets a 5 and a 6? Each dice has sides numbered from 1 to 6.