To find the value of sin(2a) when a is 30 degrees, we first need to calculate 2a.
Since a = 30 degrees, we have:
2a = 2 × 30 = 60 degrees.
Now we need to find sin(60 degrees). The sine of 60 degrees is a well-known value, which is:
sin(60 degrees) = √3/2.
Therefore, the value of sin(2a) when a is 30 degrees is:
sin(2a) = √3/2