Answers

2016-06-15T22:03:37+08:00
Ggggggggggggggggggggggggggggg


0
2016-06-15T22:22:22+08:00
2/25, 2/5, 2, 10,...
n₆ = ?
r = 5

a₆ = a₁ ₓ r ⁿ⁻1
a₆ = 2/25 ₓ 5 ⁶⁻¹
a₆  = 2/25 ₓ 5⁵
     = 2/25 ₓ 3125
 a₆  = 250
1 2 1