Asked by zhaina

The sum of the 3 terms in arithmetic sequence is 39.if these numbers is increased by 1,5 and 12 respectively the numbers would be in geometric progression. find the second term of the geometric progression?

Answers

Answered by Steve
3/2 (2a+2d) = 39
(a+d+5)/(a+1) = (a+2d+12)/(a+d+5)

a=11, d=2
AP: 11,13,15
GP: 12,18,27

a=26, d= -13
AP: 26, 13, 0
GP: 27,18,12
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions