MATLAB: How to plot a trigonometric function and a linear functions on the same graph to work out solutions to trigonometric equations

functionsgraphMATLABsin

please could someone explain how to plot the above

Try

plot(t,y1,t,y2*ones(size(t)))

for example.

plot(x,y1)
hold on
plot(x,y2)

%or

plot(x,y1,x,y2)

%or

plotyy(x,y1,x,y2)

Analytic solution:

x(1) = 180 + 360*Z1
x(2) = 180 + 360*Z2;
x(3) = 180 + 360*Z3;
x(4) and x(5) arbitrary (that is, the above 3 together solve all 5 equations)

Here, Z1, Z2, and Z3 represent arbitrary integers