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Randy

using trapz to solve integral M= Q(t)*C(t) @ t1=2 & t2=8
for Q(t)=9+5*cos(.4*t).^2
& C(t)=5*exp(-.5*t) + 2*exp(.15*t)
what is wrong with this entry
M =(9+5*(cos(.4*t)).^2).*(5*exp(-.5*t) + 2*exp(.15*t))

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