The value of sin60° cos30° - cos60° sin30° is :

sin60° cos30° - cos60° sin30°

= \(\frac{√3 }{2}\) × \(\frac{√3 }{2}\) - \(\frac{1 }{2}\) × \(\frac{1 }{2}\)

= \(\frac{3 }{4}\)  - \(\frac{1 }{4}\)

= \(\frac{2 }{4}\) 

= \(\frac{1 }{2}\)