а) |а|=12
a¹= -12; a²=12.
б) |а|=7
a¹= -7; a²=7.
в) |а|=0
a=0.
г) |-а|=11
|а|=11
a¹= -11; a²=11.
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а) |а|=12
a¹= -12; a²=12.
б) |а|=7
a¹= -7; a²=7.
в) |а|=0
a=0.
г) |-а|=11
|а|=11
a¹= -11; a²=11.