Question

does there exist a surface x=x(u,v) with E=1, F=0, G=(cos^2)u and e=(cos^2)u, f=0, g=1 ?

does there exist a surface x=x(u,v) with E=1, F=0, G=(cos^2)u and e=(cos^2)u, f=0, g=1 ?

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