[" The order of the differential equation "],[" satisfying "sqrt(1-x^(4))+sqrt(1-y^(4))=a(x^(2)-y^(2))" is "]

The degree of the differential equation satisfying sqrt(1-x^(2))+sqrt(1-y^(2))=a(x-y) , is

The degree of the differential equation satisfying sqrt(1-x^2)+sqrt(1+y^2)=a(x-y) is_____.

The degree of the differential equation satisfying sqrt(1-x^(2))+sqrt(1-y^(2))=a(x-y) is (a) 1(b)2(c)3 (d) none of these

The degree of the differential equation satisfying sqrt(1+x^(2))+sqrt(1+y^(2))=K(x sqrt(1+x^(2))-y sqrt(1+x^(2))) (1) 4(2)3(3)1(4)2