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某线性滤波电路,其频率特性函数如下图, 输入 u i = 2sin(t+3 π/10 )+2 sin(6t+3 π/10 )+ 2sin(60t+3 π/10 ) , 则其输出uo表达式()。
A.
u o = 2sin(t+3 π/10 )+2 sin(6t+3 π/10 )+ 2sin(60t+3 π/10 )
B.
u o = 2sin(t+2 π/10 )+ sin(6t-3 π/10 )+ 0.1sin(60t+3 π/10 )
C.
u o =3 sin(t+3 π/10 )+ sin(6t+3 π/10 )+ 2sin(60t+3 π/10 )
D.
u o = 20sin(t+3 π/10 )+2 sin(6t+ π/10 )+ 2sin(60t-3 π/10 )