![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
已知角α的终边上一点P(-4,3),则cosα=()
A.-3/5
B.3/5
C.-4/5
D.4/5
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、-4/5
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.-3/5
B.3/5
C.-4/5
D.4/5
C、-4/5
A.当m=-4时,cosβ=4/5,tanβ=3/4
B.当m=4时,cosβ=4/5,tanβ=3/4
C.当m=-4时,cosβ=-4/5,tanβ=-3/4
D.当m=4时,cosβ=-4/5,tanβ=3/4
设角α的终边通过点P(-5,12),则cotα+sinα等于()
A.7/13
B.-7/13
C.79/156
D.-79/156