Question
In the sequence, an = (-1)n+1)(n+2), what is a10?
Answers
mathhelper
if
a(n) = (-1)n+1)(n+2) , then
a(10) = -1(11)(12) = ....
a(n) = (-1)n+1)(n+2) , then
a(10) = -1(11)(12) = ....