Math, asked by krishnasanthosh, 7 months ago

1st term of an arithmetic sequence is 20.find the sum of first 15 terms

Answers

Answered by chaitanyatejapm

0

Answer:

If the 1st term is 20. The 15th term will be 20×15 i.e =300

Answered by sainu8

0

Answer:

20×(20-15)=100 i think it is the answer

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