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Chapter 14: Q48. (page 768)

Find the exact value of the function $\sin (390 °)$ .

Short Answer

Expert verified

The exact value of given function is $\frac{1}{2}$ .

Step by step solution

Step 1. Write down the given equation.

The given function is $\sin (390 °)$ .

Step 2. Simplify the given function.

The value of trigonometric function $\sin (390 °)$ is evaluated as:

$\begin{matrix} \sin (390 °) = \sin (360 ° + 30 °) \\ = \sin (30 °) \\ = \frac{1}{2} \end{matrix}$

Step 3. Conclusion.

The exact value of given function is $\frac{1}{2}$ .

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For Exercises $16 - 18$ , use the following information.

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Find the exact value of the function sin390°.

Short Answer

Step by step solution

Step 1. Write down the given equation.

Step 2. Simplify the given function.

Step 3. Conclusion.

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Most popular questions from this chapter

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Find the exact value of the function $\sin (390 °)$ .