1~30的平方根,e.g.1^2=1,2^2=4 (20分)

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900

2007-11-02 21:10:19 補充：
這兩條公式或許能幫助你計算和記憶：(a+b)^2=a^2+2ab+b^2(a-b)^2=a^2-2ab+b^2

2007-11-02 21:23:28 補充：
上面那位，我沒有copy你啊！這個問題只有一個答案，答案相同有何奇怪？

2007-11-02 21:31:24 補充：
其實背熟頭10個就可以了，11-20的平方可以這樣計算：11^2=120 1^2=12112^2=140 2^2=14413^3=160 3^3=169...20^2=300 10^2=40021-30的平方可以這樣計算：21^2=440 1^2=44122^2=480 2^2=48423^3=520 3^3=529...30^2=800 10^2=900參考資料：上面第一條公式

2007-11-04 20:00:59 補充：
what do you mean by not really clear? which part?

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900
31^2=961
32^2=1024
33^2=1089
34^2=1156
35^2=1225
36^2=1296
37^2=1369
38^2=1444
39^2=1521
40^2=1600

1²=1
2²=4
3²=9
4²=16
5²=25
6²=36
7²=49
8²=64
9²=81
10²=100
11²=121
12²=144
13²=169
14²=196
15²=225
16²=256
17²=289
18²=324
19²=361
20²=400
21²=441
22²=484
23²=529
24²=576
25²=625
26²=676
27²=729
28²=784
29²=841
30²=900

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900

1^2=1!2^2=4!3^2=9!4^2=16!5^2=25!6^2=36!7^2=49!8^2=64!9^2=81!10^2=100! 11^2=121!12^2=144!13^2=169!14^2=196!15^2=225!16^2=256!17^2=28918^2=324!19^2=361!20^2=400!21^2=441!22^2=484!23^2=529!24^2=576!25^2=625!26^2=676!27^2=729!28^2=784!29^2=841!30^2=900!

2007-11-02 21:19:59 補充：
有個秘訣!每一次x多左個數都係每次加2example:1^2=1~2^2=4(加左3)3^3=9(3 2=5比前一個加左5)4^4=16(5 2=7比前一個加左7)就係咁啦第一果個我無抄你架!_!

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
9^2=81
10^2=100
11^2=121
12^2=144
13^2=169
14^2=196
15^2=225
16^2=256
17^2=289
18^2=324
19^2=361
20^2=400
21^2=441
22^2=484
23^2=529
24^2=576
25^2=625
26^2=676
27^2=729
28^2=784
29^2=841
30^2=900

2007-11-02 21:15:34 補充：
唔好俾copy我d人分