Math, asked by srushtiGhuge, 1 month ago

1+3=16 2+4=10 find t20​

Answers

Answered by nareshmw00saini
0

Answer:

Find the sum of the first 20 terms of the arithmetic series if a1=5 and a20=62 .

S20=20(5 + 62)2S20=670

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