tan^(-1)(x^(2)+y^(2))=a

(dy)/(dx) if a=tan^(-1)(x^(2)+y^(2))

Find dy/dx" when "tan^(-1)(x^(2)+y^(2))=0 .

If tan ^(-1)((x^(2)-y^(2))/(x^(2)+y^(2)))=a, prove that (dy)/(dx)=(x)/(y)((1-tan a))/((1+tan a))

If tan^(-1)((x^(2)-y^(2))/(x^(2)+y^(2)))=a , show that (dy)/(dx)=(x(1-tana))/(y(1+tana)).

If tan^(-1)((x^(2)-2y^(2))/(x^(2)+2y^(2)))=a show that (dy)/(dx)=(x(1-tana))/(2y(1+tana))

If tan^(-1)((x^(2)-2y^(2))/(x^(2)+2y^(2)))=a,"show that "(dy)/(dx)=(x(1-tana))/(2y(1+tana))

tan^(-1)""(x-y)/(1+xy)+tan^(-1)""(y-z)/(1+yz)+tan^(-1)""(z-x)/(1+zx) =tan^(-1)""(x^(2)-y^(2))/(1+x^(2)y^(2))+tan^(-1)""(y^(2)-z^(2))/(1+y^(2)z^(2))+tan^(-1) ""(z^(2)-x^(2))/(1+z^(2)x^(2))

Find dy/dx when tan^-1(x^2+y^2)=0

If y=tan^(-1) sqrt(x^(2)+y^(2))+cot^(-1) sqrt(x^(2)+y^(2)),"then " dy/dx=

The integrating factor of the differential equation (dy)/(dx)+(3x^(2)tan^(-1)y-x^(2))(1+y^(2))=0 is