Question

sin30-cos45+sin60
=?

Answer 1

Explicație pas cu pas:

$\sin30\degree- \cos45\degree+ \sin60\degree = \dfrac{1}{2} - \dfrac{ \sqrt{2} }{2} + \dfrac{ \sqrt{3} }{2} = \dfrac{1 - \sqrt{2} + \sqrt{3} }{2}$