Question

2tgп/4 -2cosп/3 +sin п/2​

Answer 1

$2 \tan( \frac{\pi}{4} ) - 2 \cos( \frac{\pi}{3} ) + \sin( \frac{\pi}{2} ) = 2 \times 1 - 2 \times \frac{1}{2} + 1 = \\ = 2 - 1 + 1 = 2$