Does the equation have a real solution...please help!
13656
Prove existence of a real root.
58675
The real or purely imaginary solutions of the equation, $z^3+iz-1=0$ are?
18510
How to solve the following equation numerically?
139419
Problem on the domain of the solution of a differential equation
12752
Question about the solution of the wave equation
14517
Existence of solutions of the equation with a limit.
97204
Is there a unique solution for this quadratic matrix equation?
41655
Simple equation for $x$ but getting no proof.
51029
Looking for a hint on the class of a particular equation
3036
Is a polynomial equation of degree $\ge 5$ not solvable by any way?
153510
Questions about the existence of a function
2648
Show that the equation $\cos(\sin x)=\sin(\cos x)$ has no real solutions.
85540
Prove or Disprove the Existence of Solutions...
142642
$A=\begin{pmatrix}0&0&1\\ 0&1&0\\ 1&0&0\end{pmatrix}$, $X^2=A$ has no solutions
134736
Prove using Rolle's Theorem that an equation has exactly one real solution.
105693
How do I solve this PDE?
121759
If this equation in x has real roots find the value of a and b.