What is the value of the expression? 7^-3.7^9/7^-8 a. 7^14 b. 7^2 c. 7^−14 d. 7^−2

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

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Find the domain of the following expression: 1/(√x)-2