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iris [78.8K]
3 years ago
13

Please help meeeee ill mark brainlest

Mathematics
1 answer:
Butoxors [25]3 years ago
4 0

A(n)=-1+(n-1)2\\\\A(30)-\text{put n =30 into the equation}\\\\A(30)=-1+(30-1)2=-1+(29)2=-1+58=57\\\\Answer:\ 57

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