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3291Exponential Decay After Two Time UnitsSolve x'(t)=-3x(t) with x(0)=12, and evaluate x(2).数学简单derivation未尝试面试订阅3293Cooling Model Over Half a UnitSolve x'(t)=-2x(t) with x(0)=10, and evaluate x( 1 2 ).数学简单derivation未尝试面试订阅3296Linear ODE with Constant ForcingSolve x'(t)+2x(t)=6 with x(0)=1, and simplify the solution.数学中等derivation未尝试面试订阅3301Logistic Growth Carrying CapacityConsider the logistic ODE x'(t)=1x(t) (1- x(t) 10 ) with initial value x(0)=2. What is the long-run limit of x(t) as t ?数学简单derivation未尝试面试订阅3306Simple Harmonic Oscillator SolutionSolve y''+4y=0 with y(0)=1 and y'(0)=0.数学中等derivation未尝试面试订阅3311Stable Equilibrium of x(1-x)Consider x'(t)=x(1-x). Which equilibrium is stable?数学中等derivation未尝试面试订阅3315Stable Root in a Shifted Logistic FlowConsider x'(t)=(x-1)(3-x). Which equilibrium is stable?数学中等derivation未尝试面试订阅5858Integrating Factor with Variable CoefficientSolve the first-order linear ODE x'(t)+\dfrac x(t) t =t for t>0 with x(1)=2, and evaluate x(2).数学中等derivation未尝试面试订阅5859Separable Nonlinear ODE and Blow-UpSolve the separable ODE y'(x)=x\,y(x) 2 with y(0)=1. At what value of x>0 does the solution blow up?数学中等derivation未尝试面试订阅5860Overdamped Second-Order ODE with Distinct Real RootsSolve y''-5y'+6y=0 with y(0)=1 and y'(0)=0.数学中等derivation未尝试面试订阅