Fill in the blanks so that , 8, , , 27, ,... (c) a sequence that is neither arithmetic nor geometric for which you are able to write a general term

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?