Mister Exam

(sqrt2)tgxctgx<2cosx inequation

A inequation with variable

The solution

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\/ 2 *tan(x)*cot(x) < 2*cos(x)
2tan(x)cot(x)<2cos(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)