Differential Equation of the Form $\frac{dy}{dx}=\sin(x+y)$
116946
Ordinary differential equation $y'(t)=\sin(f(t,y))$
145504
Help solving variable separable ODE: $y' = \frac{1}{2} a y^2 + b y - 1$ with $y(0)=0$
71127
How do I find $f(0)$, $f'(0)$, and $f'(x)$ given $f(x+y)=f(x)+f(y)+x^2y+xy^2$ and $\lim_{x\to0}\frac{f(x)}{x}=1$?
39404
How to solve harmonic oscillator differential equation: $\dfrac{d^2x}{dt^2} + \dfrac{kx}{m} = 0$
85386
Differential equation $y''=\frac{y'}{2\sqrt y}$
67158
Solve $y'-\int_0^xy(t)dt=2$
102662
Nonlinear differential equation: numerical solution
132108
How to solve differential equation $y=xy'+\frac12y'^2$
73786
Limit of $\frac{\sin(x+y)}{x+y}$ as $(x,y) \to (0,0)$
116969
Differential equation in RL-circuit
98653
Easiest way to solve $y''+y=\frac{1}{\cos x}$
62529
Solve $y’ = \frac{2-xy^3}{3x^2y^2}$ using Bernoulli form
64628
Solving limits of a sine wave $\lim_{x\to+\infty}\frac{\sin(x)}{x}$
83557
$\frac{x^2}{y+z}+\frac{y^2}{x+z}+\frac{z^2}{x+y} \ge \frac{1}{2}(x+y+z)$
82488
Periodic solution of differential equation $y′=f(y)$
36457
Closed form for $\int \frac{1}{\sin^nx +\cos^mx}dx$
30120
Find solutions for an differential equation system