Sr Examen

(sqrt2)tg(x)ctg(x)<2cosx desigualdades

En la desigualdad la incógnita

Solución

Ha introducido [src]
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\/ 2 *tan(x)*cot(x) < 2*cos(x)
$$\sqrt{2} \tan{\left(x \right)} \cot{\left(x \right)} < 2 \cos{\left(x \right)}$$
(sqrt(2)*tan(x))*cot(x) < 2*cos(x)