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解答下列各题:(1)计算:;(2)解不等式组并写出该不等式组的整数解;(3)解方程:.
试题详情
解答下列各题:
(1)计算:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKIAAAAZCAYAAACy//WtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
;
(2)解不等式组
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGoAAAA6CAYAAABYr8xgAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
并写出该不等式组的整数解;
(3)解方程:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAE0AAAAjCAYAAADR94eaAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
.
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