- #1

- 1,197

- 1

here's what I have:

[tex]d=\sqrt{x^2+y^2+z^2}=1[/tex]

[tex]d=x^2+y^2+z^2=1[/tex]

[tex]T=\frac{1}{x^2+y^2+z^2}[/tex]

so the gradient is:

[tex]T_x=-\frac{2x}{(x^2+y^2+z^2)^2}[/tex]

[tex]T_y=-\frac{2y}{(x^2+y^2+z^2)^2}[/tex]

[tex]T_z=-\frac{2z}{(x^2+y^2+z^2)^2}[/tex]

but this is not right, i where did I go wrong?