Math, asked by ahmmdanees, 7 months ago

Sum of first n terms of an arithmetic sequence is 8n2+5n ? a.find the sum of 20th term b.write the algebraic expression of the sequence

Answers

Answered by vevergreen48

1

Answer:

sum of 20th term is. 3300

tn= 16n-3

Step-by-step explanation:

the answer is attached above

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