sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=
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sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=sin3π/
sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=
sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=
sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=
sin3π/4=√2/2
sin11π/4=√2/2
sin7π/4=-√2/2
sin-1π/2=-1
sin-1π/4=-√2/2
sin3π/4=,sin11π/4=,sin7π/4=,sin-1π/2=,sin-1π/4=
三角函数sin3/4π=?sin3/4π=?
求下列三角函数值 1.sin11π/6 2.sin3π/5 3.sin(-5/3π) 4.cos(-11/9π) 5cos(-17/4)π
sin3π/2=
三角函数sin7/4π=?三角函数sin3/4π=?
LOG4 SIN3/4π+LOG3 tan(-5/6π)=?
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