Question

1)sin45°+cos45°=
2)sin60°+cos30°=
3)sin30°-cos60°=

Answer 1

1)
$\sqrt{2}$
2)
$\frac{ \sqrt{3} }{2} + \frac{ \sqrt{3} }{2} = \sqrt{3}$
3)
$\frac{1}{2} - \frac{1}{2} = 0$