已知sin(x+30°)=2sin(x-30°),则tanx=( )

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已知sin(x+30°)=2sin(x-30°),则tanx=()已知sin(x+30°)=2sin(x-30°),则tanx=()已知sin(x+30°)=2sin(x-30°),则tanx=()x

已知sin(x+30°)=2sin(x-30°),则tanx=( )
已知sin(x+30°)=2sin(x-30°),则tanx=( )

已知sin(x+30°)=2sin(x-30°),则tanx=( )
x=60度+k*180度 tanx=三分之根号三