1,3,9,27,.....
係咩number pattern??
number pattern[急]
2007-06-17 1:51 am
回答 (5)
2007-06-17 2:12 am
✔ 最佳答案
1)1,3,9,27,.....number pattern=3^(n-1)
2)4,12,36,108.....
number pattern=4x3^(n-1)
3)1,5,12,22.....
number pattern=1+4+7...+3n-2=n(3n-1)/2
2007-06-16 18:15:05 補充：
樓上嗰位朋友搞咩呀!!!!1 x 3= 3 x 3 = 9 x 3 = 27 x 3 =814 x 3 = 12 x 3 = 36 x 3 = 108 x 3 = 3241 + 4 = 5 + 7 = 12 + 10 = 22 + 13 = 35 + 16 = 51
2007-06-17 3:09 am
1,3,9,27,.....
=3^0,3^1,3^2,3^3.............3^(n-1)
4,12,36,108
=(3^0)x4,(3^1)x4,(3^2)x4,(3^3)x4.............[3^(n-1)]x4
1,5,12,22.....
=1x1,2x2.5,3x4,4x5.5......................n(3n-1)/2
....x^01(不論x=?,除了0)(x0)
=3^0,3^1,3^2,3^3.............3^(n-1)
4,12,36,108
=(3^0)x4,(3^1)x4,(3^2)x4,(3^3)x4.............[3^(n-1)]x4
1,5,12,22.....
=1x1,2x2.5,3x4,4x5.5......................n(3n-1)/2
....x^01(不論x=?,除了0)(x0)
參考: me
2007-06-17 2:03 am
1,3,9,27,.....
係咩number pattern??
1 x 3= 3 x 3 = 9 x 3 = 27 x 3 =81
仲有4,12,36,108.....
係咩number pattern??
4 x 3 = 12 x 3 = 36 x 3 = 108 x 3 = 324
仲有1,5,12,22.....
係咩number pattern??
1 + 4 = 5 + 7 = 12 + 10 = 22 + 13 = 35 + 16 = 51
係咩number pattern??
1 x 3= 3 x 3 = 9 x 3 = 27 x 3 =81
仲有4,12,36,108.....
係咩number pattern??
4 x 3 = 12 x 3 = 36 x 3 = 108 x 3 = 324
仲有1,5,12,22.....
係咩number pattern??
1 + 4 = 5 + 7 = 12 + 10 = 22 + 13 = 35 + 16 = 51
2007-06-17 1:59 am
1, 3, 9, 27, ......
number pattern = 3^(n-1)
number pattern = 3^(n-1)
2007-06-17 1:58 am
1,3,9,27,.....
-->3^0,3^1,3^2,3^3.............3^n
4,12,36,108
=4(3)^0,4(3)^1,4(3)^2,4(3)^3,.........................4(3^n)
-->3^0,3^1,3^2,3^3.............3^n
4,12,36,108
=4(3)^0,4(3)^1,4(3)^2,4(3)^3,.........................4(3^n)
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