The x-coordinates of the intersection points between the two graphs are? solx and soly
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v =[2;0;1;9;0;1;3;0;1];
m = max(v);
n = mean(v);
syms x;
f= @(x)(3+sin(m*x)+cos(n*x));
ezplot(f,[-pi,pi]);
dfx(x)= diff(f(x)); dfx(x)
A=2*pi*int(f*sqrt(1+dfx^2),-2*pi,2*pi);
An = double(A);
V=pi*int((3+sin(n*x))^2,-2*pi,2*pi);
Vn=double(V);
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