帮我算几道简单的数学题
(1)16×2^-4 (2)(1/3)^0÷(-1/3)^-2
人气：433 ℃ 时间：2020-02-05 23:16:02
解答
(1)16×2^-4=16*1/2^4=16*1/16=1
(2)(1/3)^0÷(-1/3)^-2=1÷(1/3)^-2=1÷1/（1/3）^2=1÷9=1/9
或者=(1/3)^0÷(1/3)^-2=(1/3)^[0-(-2)]=(1/3)^2=1/9
任何不是0的数的0次方等于1
推荐
猜你喜欢
- Why don`t you talk to her about it 同义句__ __ talking to him about it?
- 坚持做一件事情就会成功,这句用一个四字成语概括
- 两捆电话线的长度相等,如果第一捆剪去20米,第二捆剪去4米,那么第二捆剩下的长度正好是第一捆余下长度的3
- You're shorter than me的问句 My legs are longer than yours的问句 She is 2years younger than you
- 已知三角形ABC中,A(2,-1),B(3,2),C(-3,-1),BC边上高为AD,求向量AD及D点坐标
- My father will come back in a week .同义句转换（ )( )a week ()my father comes back.
- I don't regret the things I've done,I regret the things I didn't do when I had the chance.不为做过
- 例句：书似阶梯,开启心灵之门；书似灯塔,照亮前行之路.仿句：(>_
