题目内容
计算
(1)(π-1)0+(
)-1+|5-
|-2
(2)
÷
×
.
(1)(π-1)0+(
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(2)
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(1)原式=1+2+3
-5-2
=
-2;
(2)原式=
×
×
=
=
.
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(2)原式=
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