观察下表,填表后再解答问题
(1)试完成下列表格
序号 | 1 | 2 | 3 | n |
| ●●● ●☆● ●●● | ●●●●● ● ☆☆ ● ● ☆☆ ● ● ● ●●●●● | ●●●●●●● ● ☆☆☆ ● ● ☆☆☆ ● ● ☆☆☆ ● ● ● ● ● ●●●●●●● | / |
●个数 | 8 |
| 24 |
|
☆个数 | 1 | 4 |
|
|
(2)试求第几个图形中,“●”的个数和“☆”个数相等﹒
观察下表,填表后再解答问题
(1)试完成下列表格
序号 | 1 | 2 | 3 | n |
| ●●● ●☆● ●●● | ●●●●● ● ☆☆ ● ● ☆☆ ● ● ● ●●●●● | ●●●●●●● ● ☆☆☆ ● ● ☆☆☆ ● ● ☆☆☆ ● ● ● ● ● ●●●●●●● | / |
●个数 | 8 |
| 24 |
|
☆个数 | 1 | 4 |
|
|
(2)试求第几个图形中,“●”的个数和“☆”个数相等﹒