syms x y t
eq1=(x-cos(100*t))^2+(y-sin(100*t))^2-5^2;
eq2=(x-3)^2+(y-5)^2-7^2;
D=solve(eq1,eq2,x,y);
X=D.x
Y=D.y
diff(Y,t) % Y'(t)
syms x y t
eq1=(x-cos(100*t))^2+(y-sin(100*t))^2-5^2;
eq2=(x-3)^2+(y-5)^2-7^2;
D=solve(eq1,eq2,x,y);
X=D.x
Y=D.y
diff(Y,t) % Y'(t)