题目内容
计算:(1)
-3
+sin45°;
(2)
-2-1+|
-2|-3sin60°.
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(2)
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(1)原式=
-3
+
=-2
;
(2)原式=2
-
+2-
-3×
=-
+
.
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=-2
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(2)原式=2
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=-
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