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设角α的终边通过点P(-5,12),则cotα+sinα等于() A.7/13B.-7/13C.79/156D.-79/156
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
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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
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
A.(2cos θ,2sin θ)
B.(-2cos θ,2sin θ)
C.(-2cos θ,-2sin θ)
D.(2cos θ,-2sin θ)
A.S1>S2
B.S1<S2
C.S1=S2
D.S1≥S2