Step 5: Solve f(x) = 0 ANALYTICALLY. That said, you may need the use of a calculator at some point if our roots are not rational. If that's the case, make sure you provide a "calculator ready answer," then use nverse trig and calculator to solve. Be sure to find two solutions, f(x) = 8sin (x - ²π) - 4

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Answer this question with all the steps and parts to the question, please show all work and steps. DO NOT USE A GRAPHING SOFTWARE ALL WORK MUST BE DONE ANALYTICALLY. Thank you. 

### Step 5: Solve \( f(x) = 0 \) ANALYTICALLY

That said, you may need the use of a calculator at some point if your roots are not rational. If that's the case, make sure you provide a "calculator ready answer," then use inverse trig and calculator to solve. **Be sure to find two solutions.**

Given function:
\[ f(x) = 8 \sin\left(x - \frac{2}{5} \pi \right) - 4 \]

1. **Rewrite with function set to zero:**

\[ 0 = 8 \sin\left(x - \frac{2}{5} \pi \right) - 4 \]

2. **Solve for the sine function:**

\[ 4 = 8 \sin\left(x - \frac{2}{5} \pi \right) \]
\[ \sin\left(x - \frac{2}{5} \pi \right) = \frac{1}{2} \]

3. **Calculate the general solutions for \( \sin \theta = \frac{1}{2} \):**
   
   \[ \theta = \frac{\pi}{6}, ~\theta = \pi - \frac{\pi}{6} = \frac{5\pi}{6} \]

4. **Find \( x \) by reverting the shift applied:**

   \[ x - \frac{2}{5} \pi = \frac{\pi}{6} \rightarrow x = \frac{\pi}{6} + \frac{2}{5} \pi = \frac{5\pi}{15} + \frac{6\pi}{15} = \frac{11\pi}{15} \]
   
   \[ x - \frac{2}{5} \pi = \frac{5\pi}{6} \rightarrow x = \frac{5\pi}{6} + \frac{2}{5} \pi = \frac{25\pi}{30} + \frac{12\pi}{30} = \frac{37\pi}{30} \]

   Thus, the two solutions are:

   \[ x = \frac{11\pi}{15} \]
   \[ x = \frac{37\pi}{30} \]

This process will give you the two solutions analytically. If any part
Transcribed Image Text:### Step 5: Solve \( f(x) = 0 \) ANALYTICALLY That said, you may need the use of a calculator at some point if your roots are not rational. If that's the case, make sure you provide a "calculator ready answer," then use inverse trig and calculator to solve. **Be sure to find two solutions.** Given function: \[ f(x) = 8 \sin\left(x - \frac{2}{5} \pi \right) - 4 \] 1. **Rewrite with function set to zero:** \[ 0 = 8 \sin\left(x - \frac{2}{5} \pi \right) - 4 \] 2. **Solve for the sine function:** \[ 4 = 8 \sin\left(x - \frac{2}{5} \pi \right) \] \[ \sin\left(x - \frac{2}{5} \pi \right) = \frac{1}{2} \] 3. **Calculate the general solutions for \( \sin \theta = \frac{1}{2} \):** \[ \theta = \frac{\pi}{6}, ~\theta = \pi - \frac{\pi}{6} = \frac{5\pi}{6} \] 4. **Find \( x \) by reverting the shift applied:** \[ x - \frac{2}{5} \pi = \frac{\pi}{6} \rightarrow x = \frac{\pi}{6} + \frac{2}{5} \pi = \frac{5\pi}{15} + \frac{6\pi}{15} = \frac{11\pi}{15} \] \[ x - \frac{2}{5} \pi = \frac{5\pi}{6} \rightarrow x = \frac{5\pi}{6} + \frac{2}{5} \pi = \frac{25\pi}{30} + \frac{12\pi}{30} = \frac{37\pi}{30} \] Thus, the two solutions are: \[ x = \frac{11\pi}{15} \] \[ x = \frac{37\pi}{30} \] This process will give you the two solutions analytically. If any part
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