1. The problem statement, all variables and given/known data Let x be the solution to dx/dt=(pi-x)cos(5x) x(0)=4pi/3 Find the lim x(t) as t goes to infinity. 2. Relevant equations 3. The attempt at a solution cos(5x)=0 when 5x=n(pi), so when x=n(pi)/5 which = 4(pi)/3 since we have that initial condition. so, n=20/3, x=4(pi)/3 ??...I don't know what to do! any hints?