Question

Sin30 + cos30 supra ctg45 + tg60=?

Answer 1

$\frac{ \frac{1}{2} + \frac{ \sqrt{3} }{2} }{1+ \sqrt{3} } = \frac{ \sqrt{3} +1}{2} * \frac{1}{1+ \sqrt{3} } = \frac{1}{2}$