Functions and Relations Question
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Grade 11 Functions and Relations CCSS: HSF-BF.A.2
If a geometric sequence has the recursive formula a1=5; an=an-1⋅3, what is the explicit formula?
- an=5⋅3n-1
- an=3⋅5n-1
- an=5+3(n-1)
- an=3+5(n-1)