Question

sin 2x =sin60.cos30-cos 60.sin30​

Answer 1

Answer:

sin(60-30)= sin60cos30-cos60sin30

Step-by-step explanation:

therefore sin2x= sin30

sin2x=sin2(15)

therefore x=15

Answer 2

Answer:

15

Step-by-step explanation:

sin2x=sin(60-30) sinAcosB-cosAsinB=sin(A-B)

sin2x=sin30

2x=30

x=15