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If [img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img] for all integers x and
If [img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img] for all integers x and
游客
2024-01-14
33
管理
问题
If
for all integers x and y; then (-5)×2=
选项
A、
B、
C、
D、
E、
答案
B
解析
The equation [(2×-5)-2]/[(2×2)-(-5)]=-12/9=-4/3.
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