Question

$3 sin 45° - 2 kos 60$
​

Answer 1

$\sin(45°) = \frac{1}{ \sqrt{2} } \\ \\ \cos(60°) = \frac{1}{2} \\ \\ \\ \\ 3 \times \frac{1}{ \sqrt{2} } - 2 \times \frac{1}{2} \\ \\ \frac{3}{ \sqrt{2} } - 1 \\ \\ \boxed{{\frac{3 - \sqrt{2} }{ \sqrt{2} }}}</p><p>$

_______________________________

I Hope it helps.