Math, asked by faihathayattil, 1 month ago

Sum of first 15 terms is 105
Find 8th term
Find first term and common difference

Answers

Answered by deveshupadhyay277304

0

Answer:

Sn=n/2(a+l)=105

15/2(a+l)=105

a+l=7×2

a+l=14

2a+(n-1)d=14

2a+14d=14

a+7d=7

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