Solution
$$\sin 60^\circ \cos 30^\circ + \cos 60^\circ \sin 30^\circ$$
$$\sin 60^\circ $$ =$$\frac{\sqrt{3}}{2}$$
$$\cos 30^\circ$$ = $$\frac{\sqrt{3}}{2}$$
$$ \cos 60^\circ$$ = $$\frac{1}{2}$$
$$\sin 30^\circ$$ = $$\frac{1}{2}$$
$$\sin 60^\circ \cos 30^\circ + \cos 60^\circ \sin 30^\circ$$
$$\frac{\sqrt{3}}{2}\times \frac{\sqrt{3}}{2}$$ + $$\frac{1}{2}\times \frac{1}{2}$$ = 1
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