已知整数x,y满足|lgx/y|≤1且|log(x²y)|≤1.求x,y的取值范围
问题描述:
已知整数x,y满足|lgx/y|≤1且|log(x²y)|≤1.求x,y的取值范围
答
由|lgx/y|≤1知 x>0,|log(x²y)|≤1知 x²y>0y>0|lgx/y|≤1-1≤lgx/y≤1 -y≤lgx≤y |log(x²y)|≤1-1≤log(x²y)...