Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Can I get help with this trig problem? Can You show me how you got the answer with steps, please?

**Graphing Trigonometric Functions: Step-by-Step**

**Objective:**

Sketch one complete cycle of the following function by first graphing the appropriate sine or cosine curve and then using the reciprocal relationships.

**Function:**  
\[ y = 2 \csc \left( 2x - \frac{\pi}{3} \right) \]

**Steps Involved:**

1. **Identify the Related Sine Function:**
   - The cosecant (csc) function is the reciprocal of the sine function (sin).
   - Therefore, start by sketching the sine function that corresponds to this cosecant function.

2. **Rewrite the Function in Terms of Sine:**
   - Recognize that \( \csc \theta = \frac{1}{\sin \theta} \).
   - Rewrite the given function as \( y = \frac{2}{\sin \left( 2x - \frac{\pi}{3} \right)} \).

3. **Graph the Sine Function:**
   - Consider \( y = \sin \left( 2x - \frac{\pi}{3} \right) \), noting the amplitude and period adjustments.
   - Period: The period of \( \sin(2x) \) is \(\frac{\pi}{2}\) (since \( \frac{2\pi}{2} = \pi \)).
   - Phase Shift: The phase shift is \( \frac{\pi}{3} \), shifted to the right.
   - Amplitude: This sine function will have an amplitude of 1, but the csc function will be more complex due to the reciprocal relationship.

4. **Sketch the Sine Curve:**
   - Draw the sine curve indicating key points such as maxima, minima, and intercepts, shifted right by \( \frac{\pi}{3} \).

5. **Graph the Cosecant Function:**
   - Identify the vertical asymptotes where the sine function intercepts the x-axis (these are the points where csc is undefined).
   - Draw curves going towards these asymptotes, keeping in mind that csc(x) = 1/sin(x) will stretch the graph.

6. **Adjust for Amplitude:**
   - Given the amplitude of the csc function is multiplied by 2, exaggerate the peaks and troughs accordingly, making them twice the distance from the midline as they
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Transcribed Image Text:**Graphing Trigonometric Functions: Step-by-Step** **Objective:** Sketch one complete cycle of the following function by first graphing the appropriate sine or cosine curve and then using the reciprocal relationships. **Function:** \[ y = 2 \csc \left( 2x - \frac{\pi}{3} \right) \] **Steps Involved:** 1. **Identify the Related Sine Function:** - The cosecant (csc) function is the reciprocal of the sine function (sin). - Therefore, start by sketching the sine function that corresponds to this cosecant function. 2. **Rewrite the Function in Terms of Sine:** - Recognize that \( \csc \theta = \frac{1}{\sin \theta} \). - Rewrite the given function as \( y = \frac{2}{\sin \left( 2x - \frac{\pi}{3} \right)} \). 3. **Graph the Sine Function:** - Consider \( y = \sin \left( 2x - \frac{\pi}{3} \right) \), noting the amplitude and period adjustments. - Period: The period of \( \sin(2x) \) is \(\frac{\pi}{2}\) (since \( \frac{2\pi}{2} = \pi \)). - Phase Shift: The phase shift is \( \frac{\pi}{3} \), shifted to the right. - Amplitude: This sine function will have an amplitude of 1, but the csc function will be more complex due to the reciprocal relationship. 4. **Sketch the Sine Curve:** - Draw the sine curve indicating key points such as maxima, minima, and intercepts, shifted right by \( \frac{\pi}{3} \). 5. **Graph the Cosecant Function:** - Identify the vertical asymptotes where the sine function intercepts the x-axis (these are the points where csc is undefined). - Draw curves going towards these asymptotes, keeping in mind that csc(x) = 1/sin(x) will stretch the graph. 6. **Adjust for Amplitude:** - Given the amplitude of the csc function is multiplied by 2, exaggerate the peaks and troughs accordingly, making them twice the distance from the midline as they
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