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$�� 4.3. �� :�) {x^2+y^2=9, x-y=1}; �) {x^2+y^2=16, x+y=3}.�) {x^2-y=2, y=v(x+1)-1}; �) {(x-2)^2-y=0, y=|x-2|};�)...$

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4.3. �� :

�) {x^2+y^2=9, x-y=1}; �) {x^2+y^2=16, x+y=3}.

�) {x^2-y=2, y=v(x+1)-1}; �) {(x-2)^2-y=0, y=|x-2|};

�) {(x-1)^2+(y-1)^2=25, |x-1|-y=4}; �) {(x+2)^2+(y-1)^2=4, y=-v(x+2)-1}?

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