I have a function that I would like help finding the maximum value for, without a graph. The function is:
$$ y = 5\sin(3000t) + 10\sin(2000*\pi*t) $$
When I tried Newtons method and equated it to $15$, there was no solution. When I found the derivative and equated to $0$,it did not work as there are many local maxima and minima, so when newtons method is applied, the answer depends on the starting value.
Any help on how to tackle this problem?