��.29.14 �� 11 �� (��)

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$�� 29.14. �� :�) {sin(x)+cos(y)=1, sin^2(x)+cos^2(y)=1/2};�) {cos(x)+cos(2y)=-1, 5cos(2y)-cos(x)=-2};�) {cos(x)+sin(y)=0,5,...$

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29.14. �� :

�) {sin(x)+cos(y)=1, sin^2(x)+cos^2(y)=1/2};

�) {cos(x)+cos(2y)=-1, 5cos(2y)-cos(x)=-2};

�) {cos(x)+sin(y)=0,5, cos^2(x)+cos^2(y)=1,25};

�) {2sin(2x)+3tg(3y)=-2, 6sin(2x)-2tg(3y)=5}.

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