Carry out three steps of the Bisection Method for [math] as follows:
(a) Show that [math] has a zero in [math].
(b) Determine which subinterval, [math] or [math], contains a zero.
(c) Determine which interval, [math], [math], [math], or [math], contains a zero.

In part (b), the interval with a zero is .

In part (c), the interval with a zero is .