Evaluate sin(-30 degrees )

Problem

sin(−30)

Solution

1. Apply the odd function identity for the sine function, which states that sin(−θ)=−sin(θ)

sin(−30)=−sin(30)

2. Identify the exact value of sin(30) using the unit circle or a standard 30−60−90 reference triangle.

sin(30)=1/2

3. Substitute the value back into the expression to find the final result.

−sin(30)=−1/2

Final Answer

sin(−30)=−1/2

Want more problems? Check here!