Question

write the related series for the finite sequence 3,7,11...........,27. then find the sum

Answer 1

S(n) = 3+4(n-1) = \[\sum_{0}^{7}(3+4(n-1))\]

Sum = 30*3 + 15 = 105

Answer 2

3,7,11,15,19,27

Answer 3

3,7,11,15,19,23,27=105