the third term of an Arithmetic Progression (A.P) is 23 and the sum is of...

the third term of an Arithmetic Progression (A.P) is 23 and the sum is of the first seven term is 210. find the:
a) common difference
b) first term
c) sum of the first 20 terms?

In Mathematics
1 Answers Available
Asked by D.rate on 21st November, 2023

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