Math, asked by kunithalaprakasan, 21 days ago

8th term of an arithmatic sequence is 21
what is the sum of 6th term and 10th term?
what is the sum of 1st and 15th term?
calculate the sum of 15 terms?

Answers

Answered by Abhi31082004

0

Step-by-step explanation:

i have opened a6 , a10 , a15

using

An = a + (n-1)d

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