If d/dx(f(x))=g(x) and d/dx(g(x))=f(x^2) then dy^2/dx^2(f(x^3))

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

What can you determine about the solutions of this system

Ineed no it anyone can see this