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(2007•成都)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;(...
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(2007•成都)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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