how to organization a system of nonlinear equation?

I want organization a system of equation and an equantion obtian. There are 5 equation as a function:

function Fun = CD_Fun(Cd0, alpha, T, theta, D, V, CD, AC, air)

Fun(1,1) = T * sind(abs(theta)) == D;
Fun(2,1) = T * cosd(abs(theta)) == AC.m * 9.81;
Fun(3,1) = D == 0.5 * air.rho * V^2 * CD;
Fun(4,1) = CD == Cd0 + alpha * theta^2;
Fun(5,1) = theta == -2 * V;
end

So write a code to use CD_Fun, We known AC and air parameter:

syms Cd0 alpha
syms T theta D CD V

Fun = CD_Fun(Cd0, alpha, T, theta, D, V, CD, AC, air)

S = solve(Fun,[Cd0, alpha]);

And finally I want to get to this answer.

Cd0 + (-2*V)^2 * alpha = (2*AC.m*9.81*tand(abs(-2*V)))/(air.rho * V^2)

Please help me.

Thank your attention.