��.162 �� 10-11 �� (��)

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$�� 162. �� :�) {xvx+3yvx=36, yvy+3xvy=28};�) {2x^(1/3)-2y^(1/3)=3(xy)^(1/6), x-y=63};�) {3x-v(xy)+2y=29, 2x-v(xy)-y=20};�)...$

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162. �� :

�) {xvx+3yvx=36, yvy+3xvy=28};

�) {2x^(1/3)-2y^(1/3)=3(xy)^(1/6), x-y=63};

�) {3x-v(xy)+2y=29, 2x-v(xy)-y=20};

�) {(v(x^2+y^2)+v(x^2-y^2))/(v(x^2+y^2)-v(x^2-y^2))=(5+v7)/(5-v7), x^3+2y^3=118}.

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