Question

4 sin 45° × tg 30°×ctg30°-cos45°

Answer 1

$\frac{3 \sqrt{2} }{2}$

Объяснение:

$4 \times \frac{ \sqrt{2} }{2} \times \tan(30) \times \frac{1}{ \tan(30) } - \frac{ \sqrt{2} }{2} \\ 2 \sqrt{2} - \frac{ \sqrt{2} }{2} \\ \\ \frac{3 \sqrt{2} }{2 }$