Asked by Ukper

Given that the first term of an Ap is 7and its 10th term is twice the 2nd term, calculate the( A 19th term (b sum of 28th
Answered by oobleck
a10 = 2*a2
7+9d = 2(7+d)
Solve to find d, and then
(A) a19 = a + 18d
(B) S28 = 28/2 (2*7 + 27d)
Answered by Odunayo

Given that the first term of an Ap is 7and its 10th term is twice the 2nd term, calculate the( A 19th term (b sum of 28th
Answered by VICTOR
a10 = 2*a2 7+9d=2(7+d) solve to find d and then a19=a+18d s28=28/2(2*7+27d)
Answered by Randy
if the fifth term of an AP is -1 and the sum of the first 20 term is -240. find the 10 team
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