The 6th term of an AP is – 10 and 10th term is -26. Determine the sum of the first 20 terms of the AP . Question The 6th term of an AP is – 10 and 10th term is -26. Determine the sum of the first 20 terms of the AP . in progress 0 Math Elliana 2 weeks 2021-10-14T11:44:56+00:00 2021-10-14T11:44:56+00:00 2 Answers 0 views 0

## Answers ( )

Letabe theFirst termoftheAPCommonDifference=dSoNowEquation(1)–Equation(2)givesFromEquation(1)## Hence the sum of first 20 terms

Answer:-560 is answer dear friend