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(x^2-4*x+3)*log(1/(sqrt(2)))*(cos(pi*x)^2+cos(x)+2*sin(x/2)^2)>=2 desigualdades

En la desigualdad la incógnita

Solución

Ha introducido [src]
/ 2          \    /  1  \ /   2                       2/x\\     
\x  - 4*x + 3/*log|-----|*|cos (pi*x) + cos(x) + 2*sin |-|| >= 2
                  |  ___| \                            \2//     
                  \\/ 2 /                                       
$$\left(\left(x^{2} - 4 x\right) + 3\right) \log{\left(\frac{1}{\sqrt{2}} \right)} \left(\left(\cos{\left(x \right)} + \cos^{2}{\left(\pi x \right)}\right) + 2 \sin^{2}{\left(\frac{x}{2} \right)}\right) \geq 2$$
((x^2 - 4*x + 3)*log(1/(sqrt(2))))*(cos(x) + cos(pi*x)^2 + 2*sin(x/2)^2) >= 2