Which expressions are equivalent? Check all that apply.
3^9
3^4
-9^2
9^2
81^1

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Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2

The trigonometric ratios sine and secant are reciprocals of each other