题目内容
计算:
(1)
sin45°+cos30°•tan60°
(2)|1-
|-2sin45°+(π-3.14)0+2-2.
(1)
2 |
(2)|1-
2 |
(1)原式=
×
+
×
=1+
=
;
(2)原式=
-1-2×
+1+
=
.
2 |
| ||
2 |
| ||
2 |
3 |
=1+
3 |
2 |
=
5 |
2 |
(2)原式=
2 |
| ||
2 |
1 |
4 |
=
1 |
4 |
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