Answers

2016-07-05T18:48:08+08:00
The difference is 5.

S  _{n}  \frac{n(a _{1} + a _{n} )}{2}
S _{10}  \frac{10 [(-22) + 23] }{2}
S _{10}  \frac{10}{2}
S _{10} = 5
0