组卷网>知识点选题>已知角求三角函数值
显示知识点
显示答案
| 共计 334 道试题
多选题 | 一般(0.65) | 2021·吴江汾湖高级中学高一月考
典型
1 . 下列式子结果为eqIda2a0ce3781fa4c26b624f5966b7dee44的是(     )
eqId13981e2c1a0e4442a17b6144d50217c6
eqIdf3949076d04c4652a1e17b6681c09cb2
eqId247b170b5e32414f96a845a8a4c60d10
eqIdb8f22bac29bb438c9bfce6451ac8eb37
A.①B.②C.③D.④
单选题 | 较易(0.85) | 2021·贵州师大附中高一月考
2 . 在eqId64b9b599fdb6481e9f8d9a94c102300b中,如果角ABC成等差数列,那么eqId2c204c3278f3493e897af0e3e4facf6c(   )
A.eqId49b7b111d23b44a9990c2312dc3b7ed9B.eqIdfcc58431683b452ca65d1d9977a280bdC.eqIde4d58f42bad9461b93d451da718fc6f4D.eqId232536b8bbed4f619f81f098fe3ebb9c
3 . 已知函数eqId4c0cae33f67748e0b1c0e2e1f72ebf03,实数eqId735b8047beee4dee870fc72ae837a245eqIdecaaaffea9af458c8e6dff16f15c1a73满足eqId01a499ff15054a87b1fe5fe3641d1cb5,且eqId8750dd7121c840c1b3194aadb1a2a4fe的最小值为eqId2cb51764ae3949b9b698fc2f9527dff2,由eqId10852d81bc184140a7780250c82c6929的图象向左平移eqId236bfe74f1024849b3818a5cd741f299个单位得到函数eqId28c4c21271884dfeac29ce0222782376,则eqIdf535690c2db44b20ae021be9fc2b3e82的值为(   )
A.eqId2b72a8417c624ebf84dd83b27b285676B.eqId29c898c2f6d5480e84ed6cd0dfc0930bC.eqId3385c7d74629435abd34488e4cc89b4cD.eqIda2a0ce3781fa4c26b624f5966b7dee44
9 . 已知集合eqId8a5a311076ac4262bd63d8ce9d9c9e74
(1)请你从集合eqId2381423d4cd146cab95f55527681a766中选择两个角,分别求出这两个角的正切函数值的大小;
(2)求从集合eqId2381423d4cd146cab95f55527681a766中随机抽取两个角,恰有一个角的余弦函数值为负数的概率.
10 . 已知函数eqId28c4c21271884dfeac29ce0222782376的图象向左平移eqIdd3e88ecbd2db456396e01302a43b93d9个单位长度,得到函数eqId66434741efe44d33bc8bed00b021e9f8的图象,则eqId8c151667f2d0421f8d5ffb163af5aaca_____________.