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Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Finding the Approximate Value of an Inverse Sine Expression**

**Exercise:**
Use a calculator to find the approximate value of the following expression if possible. Express your answers in degrees and round to the hundredths.

\[ \sin^{-1}(-0.698) \]

**Options:**

- \( \quad \) \( -44.27^\circ \)
- \( \quad \) \( -0.78^\circ \)
- \( \quad \) Impossible since the value is not in the domain of \( \sin^{-1}(x) \)
- \( \quad \) \( 315.73^\circ \)

**Instructions:**
1. Enter the value \(-0.698\) in your calculator's inverse sine (sin\(^-1\) or arcsin) function.
2. Ensure your calculator is set to degrees mode.
3. Compute the result and round it to the nearest hundredth.
4. Compare your result with the given options to determine the correct answer.

**Discussion:**
The function \(\sin^{-1}(x)\), also known as arcsine, is defined for \(x\) values between \(-1\) and \(1\), inclusive. The output range of \( \sin^{-1}(x) \) is typically between \(-90^\circ\) and \(90^\circ\) in degrees. This ensures that the function is bijective and we obtain a unique output for a given input.
Transcribed Image Text:**Finding the Approximate Value of an Inverse Sine Expression** **Exercise:** Use a calculator to find the approximate value of the following expression if possible. Express your answers in degrees and round to the hundredths. \[ \sin^{-1}(-0.698) \] **Options:** - \( \quad \) \( -44.27^\circ \) - \( \quad \) \( -0.78^\circ \) - \( \quad \) Impossible since the value is not in the domain of \( \sin^{-1}(x) \) - \( \quad \) \( 315.73^\circ \) **Instructions:** 1. Enter the value \(-0.698\) in your calculator's inverse sine (sin\(^-1\) or arcsin) function. 2. Ensure your calculator is set to degrees mode. 3. Compute the result and round it to the nearest hundredth. 4. Compare your result with the given options to determine the correct answer. **Discussion:** The function \(\sin^{-1}(x)\), also known as arcsine, is defined for \(x\) values between \(-1\) and \(1\), inclusive. The output range of \( \sin^{-1}(x) \) is typically between \(-90^\circ\) and \(90^\circ\) in degrees. This ensures that the function is bijective and we obtain a unique output for a given input.
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