polinom grad 3

294 days ago by marius_darie

theta=var('theta') find_root(cos(theta)==theta,0,pi/2) 
        
0.73908513321516067
0.73908513321516067
x=var('x') s=solve(x^3++2*x^2+3*x+2==0,x) show(s) 
        
\newcommand{\Bold}[1]{\mathbf{#1}}\left[x = -\frac{1}{2} i \, \sqrt{7} - \frac{1}{2}, x = \frac{1}{2} i \, \sqrt{7} - \frac{1}{2}, x = \left(-1\right)\right]
\newcommand{\Bold}[1]{\mathbf{#1}}\left[x = -\frac{1}{2} i \, \sqrt{7} - \frac{1}{2}, x = \frac{1}{2} i \, \sqrt{7} - \frac{1}{2}, x = \left(-1\right)\right]