if the sum of the first 14 terms of an ap is 175 and its first term is -7 , find the 21st term Question if the sum of the first 14 terms of an ap is 175 and its first term is -7 , find the 21st term in progress 0 Math Alexandra 3 weeks 2021-11-07T09:15:28+00:00 2021-11-07T09:15:28+00:00 2 Answers 0 views 0

## Answers ( )

Given:–Firstterma=-7Sumof1st14terms=175Tofind:–21sttermSolution:–sumofntermsofanAP=sosumof14termsofanAPwillbeNow,Now,21st term = a+20d = -7 +20(3) = -7 + 60 = 53__________________________

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Answer:is it 182

Step-by-step explanation:14 term =175

1 st = -7

= -7 +175 = 185