The faces of a number cube are numbered 1 through 6. event a = {rolling a 2, 4, or 6}. what is the complement of event a?

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%