试题 试卷
题型:填空题 题类:真题 难易度:普通
2012年广西崇左市中考数学试卷
3
a
b
c
﹣1
2
…
=1;
= =2;
= =3;
= =4.
﹣2,4,﹣8.16,﹣32,64,…;①
﹣1,2,﹣4,8,﹣16,32,…:②
0,6,﹣6,18,﹣30,66…:③
①32﹣12=(3+1)(3﹣1)=8=8×1,
②52﹣32=(5+3)(5﹣3)=16=8×2,
③72﹣52=(7+5)(7﹣5)=24=8×3,
④92﹣72=(9+7)(9﹣7)=32=8×4.
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