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锐角网-中学生天地旗下网站

求高招,看不懂

作者:韩永琪 发布时间:2014-02-15 08:27:02

我想说,为什么现在的题目没事把英语和数学结合了

If the product of all digits of a six-digit number is 1296,among such six-digit numbers,the smallest is          .

1.If 2005-200.5=x-20.05,then x equals to (    )

A.1814.55        B.1824.55      C.1774.45       D.1784.45

 

 

2.As in the figure,find the point C on the line l,so that PC=3CQ. Then the point C should be (    )

A. between P and Q        B. on the left of P

C. on the right of Q        D. between P and Q, or on the right of Q

 

 

3.If a and b are integers. Let a□b=2a-3b+ab,and a★b=a+b-ab,

then [2□(-3)] ★[3□(-2)]=___________;

 

外加一个中文的,难啊:

已知a、b、c均不为0,且满足

求证:

 

0