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The sum of 10term of an AP is 891, find the 28th and 45th term if the common difference is 14Question
the sum of 11 term of an AP is 891.find the 28th
and 45th term if the common difference is 15
and 45th term if the common difference is 15
Answers
oobleck
11/2 (2a+10*15) = 891
solve for a, then find
a+27d, a+44d
solve for a, then find
a+27d, a+44d