题目内容
求值sin(-
π)+cos
πtan4π-cos
π=______.
| 23 |
| 6 |
| 13 |
| 7 |
| 13 |
| 3 |
原式=sin(-4π+
)+cos(2π-
)tan4π-cos(4π+
)=sin
+0-cos
=
+0-
=0.
故答案为:0
| π |
| 6 |
| π |
| 7 |
| π |
| 3 |
| π |
| 6 |
| π |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
故答案为:0
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题目内容
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| 3 |
| π |
| 6 |
| π |
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| π |
| 6 |
| π |
| 3 |
| 1 |
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| 2 |