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)
$frac{1}{2} - frac{1}{2} = 0$