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sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01,+sqrt(6-x^2),+-sqrt(6-x^2)+from+-4.5+to+4.5
sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01,+sqrt(6-x^2),+-sqrt(6-x^2)+from+-4.5+to+4.5
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