Solve nonlinear equations with fsolve

I have this code :

main.m

syms t1 t2

a=5;

b=10;

x0=5;

y0=10;

x0_1=30;

y0_1=10;

raggio=3;

x1=x0+a*cos(t1)

y1=y0+b*sin(t1)

x2= x0_1+raggio*cos(t2)

y2= y0_1+raggio*sin(t2)

m_1=diff(y1)/diff(x1)

m_2=diff(y2)/diff(x2)

m_3=y2-y1/x2-x1

fun = @root2d;

t0 = [pi/2,pi/2];

t = fsolve(fun,t0)

% I have to solve a system of nonlinear equations with fsolve , but I don't know how to pass the expression m_1,m_2,m_3. The system of equations is

% m_1-m_3=0

% m_2-m_3=0

%and I have to solve this system to find the value of t1 and t2. But I don't know how can I do this.

%I create another file.m call root2d.m

function F = root2d(t)

t1=t(1)

t2=t(2)

F(1) = m_1 - m_3;

F(2) = m_2 - m_3;

end

Please help me

Thanks