几道数字规律题1.2,8,24,64,( ).A.88 B.98 C.159 D.1603.4,11,30,67,( ).A.120 B.110 C.140 D.1284.11,33,73,( ),231.A.113 B.137 C.153 D.177请说明为什么,这些题如何入手好呢?

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几道数字规律题1.2,8,24,64,( ).A.88 B.98 C.159 D.1603.4,11,30,67,( ).A.120 B.110 C.140 D.1284.11,33,73,( ),231.A.113 B.137 C.153 D.177请说明为什么,这些题如何入手好呢?
几道数字规律题
1.2,8,24,64,( ).
A.88 B.98 C.159 D.160
3.4,11,30,67,( ).
A.120 B.110 C.140 D.128
4.11,33,73,( ),231.
A.113 B.137 C.153 D.177
请说明为什么,这些题如何入手好呢?

几道数字规律题1.2,8,24,64,( ).A.88 B.98 C.159 D.1603.4,11,30,67,( ).A.120 B.110 C.140 D.1284.11,33,73,( ),231.A.113 B.137 C.153 D.177请说明为什么,这些题如何入手好呢?
1.D
2^1×1=2
2^2×2=8
2^3×3=24
2^4×4=64
2^5×5=160
2.D
1^3+3=4
2^3+3=11
3^3+3=30
4^3+3=67
5^3+3=128
3.B
2^3+3=11
3^3+6=33
4^3+9=73
5^3+12=137
6^3+15=231

都是数列问题.

1x2 2x2平方 3x2三次方 4x2四次方 5x2五次方
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