Question

The value of sin 45º.cos 30° - cos 45º.sin 30° is equal to​

Answer 1

sinAcosB - cosAsinB = sin(A-B)

sin 45º.cos 30° - cos 45º.sin 30° = sin(45-30) = sin 15°

Answer 2

yours answer is (✓3 -1)/(2✓2)

In decimal yours answer is 0.5176~0.52