Find all possible values for each expression. sin^-1 1/2 a. 30° + 180n, 150° + 180n b. 30° + 360n, 150° + 360n c. 60° + 180n, 120° + 180n d. 60° + 360n, 120° + 360n

Option B.

Step-by-step explanation:

The given expression is

It can be written as

We know that sin is positive in first and second quadrant.

For first quadrant,

For second quadrant,

So, the required angles are .

Therefore, the correct option is B.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.