using fsolve function to solve for 2 unknowns

I am trying to use the fsolve funstion to solve for 2 unknowns, the3 and theta 4, and I am not sure how

in an .m file I have this:

function F = problem_one(theta)
theta3 = theta(1);
theta4 = theta(2);

f = (2*cosd(30)) + (7*cosd(theta3)) - (9*cosd(theta4)) -6;
g = (2*sind(30)) + (7*sind(theta3)) - (9*sind(theta4));
end

and in a different script file i have this:

x0 = [80,110];
sol = @fsolve[problem_one,x0];

it tells me that my problem_one variable in unrecognized, and also a failure in the inital function objective evaluation. Please help

Answer 1

[Matt J]

x0 = [80,110];

[sol, Fsol] = fsolve(@problem_one,x0),

Equation solved.

fsolve completed because the vector of function values is near zero
as measured by the value of the function tolerance, and
the problem appears regular as measured by the gradient.

sol = 1×2

88.8372 117.2861

Fsol = 1×2

1.0e+-6 * -0.3515 0.1394

function F = problem_one(theta)
    theta3 = theta(1);
    theta4 = theta(2);
    
    F(1) = (2*cosd(30)) + (7*cosd(theta3)) - (9*cosd(theta4)) -6;
    F(2) = (2*sind(30)) + (7*sind(theta3)) - (9*sind(theta4));
end