Convert 56.6 into radical form

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x