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simplify(10*(cos(6*π/5)--i*sin(6*π/5))/((1-i*√3)*(cos(31*π/30)--i*sin(31*π/30))))
simplify(10*(cos(6*π/5)--i*sin(6*π/5))/((1-i*√3)*(cos(31*π/30)--i*sin(31*π/30))))
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