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(log4-x(x+5)×logx+1(log210-x))/sinx×logx2x desigualdades

En la desigualdad la incógnita

Solución

Ha introducido [src]
log(4) - x*(x + 5)*log(x) + log(210) - x               
----------------------------------------*log(x)*2*x > 0
                 sin(x)                                
$$x 2 \frac{\left(- x + \log{\left(210 \right)}\right) + \left(- x \left(x + 5\right) \log{\left(x \right)} + \log{\left(4 \right)}\right)}{\sin{\left(x \right)}} \log{\left(x \right)} > 0$$
x*(2*(((-x + log(210) - x*(x + 5)*log(x) + log(4))/sin(x))*log(x))) > 0