题目内容
sin
+2cos
-tan
-cosπ=______.
| 7π |
| 6 |
| 2π |
| 3 |
| 5π |
| 3 |
sin
+2cos
-tan
-cosπ
=-sin
+2cos
+tan
-cosπ
=-
+2×(-
) +
-(-1)
=
-
.
故答案为:
-
.
| 7π |
| 6 |
| 2π |
| 3 |
| 5π |
| 3 |
=-sin
| π |
| 6 |
| 2π |
| 3 |
| π |
| 3 |
=-
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
=
| 3 |
| 1 |
| 2 |
故答案为:
| 3 |
| 1 |
| 2 |
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