Question
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Find all solutions to the equation \( \tan (t)=\frac{3}{\tan (t)} \) in the interval \( 0 \leq t \leq 2 \pi \). Find exact answers (given as fractions, not decimals). Et answers as a comma separated list. \( t=1 \) help (fractions)

Ask by Salinas Reeves. in the United States
Feb 03,2025

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Tutor-Verified Answer

Answer

\( t = \frac{\pi}{3}, \frac{2\pi}{3}, \frac{4\pi}{3}, \frac{5\pi}{3} \)

Solution

To solve the equation \( \tan(t) = \frac{3}{\tan(t)} \) within the interval \( 0 \leq t \leq 2\pi \), follow these steps: 1. **Multiply both sides by \( \tan(t) \)** (assuming \( \tan(t) \neq 0 \)): \[ \tan^2(t) = 3 \] 2. **Take the square root of both sides**: \[ \tan(t) = \pm\sqrt{3} \] 3. **Find the angles \( t \) where \( \tan(t) = \sqrt{3} \) and \( \tan(t) = -\sqrt{3} \)**: - \( \tan(t) = \sqrt{3} \) occurs at: \[ t = \frac{\pi}{3}, \quad t = \frac{4\pi}{3} \] - \( \tan(t) = -\sqrt{3} \) occurs at: \[ t = \frac{2\pi}{3}, \quad t = \frac{5\pi}{3} \] 4. **List all solutions in the given interval**: \[ t = \frac{\pi}{3}, \frac{2\pi}{3}, \frac{4\pi}{3}, \frac{5\pi}{3} \] **Final Answer:** \[ \frac{\pi}{3}, \frac{2\pi}{3}, \frac{4\pi}{3}, \frac{5\pi}{3} \]

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Beyond the Answer

To solve the equation \( \tan(t) = \frac{3}{\tan(t)} \), let's start by multiplying both sides by \( \tan(t) \) (assuming \( \tan(t) \neq 0 \)) to eliminate the fraction: \[ \tan^2(t) = 3. \] Next, we can solve for \( \tan(t) \): \[ \tan(t) = \pm \sqrt{3}. \] Now we need to find the values of \( t \) in the interval \( 0 \leq t \leq 2\pi \) that correspond to these values of the tangent function. 1. **For \( \tan(t) = \sqrt{3} \)**: - The reference angle where \( \tan(t) = \sqrt{3} \) is \( \frac{\pi}{3} \). - In the interval \( [0, 2\pi] \), the angles satisfying this are: \[ t = \frac{\pi}{3} \quad \text{and} \quad t = \frac{\pi}{3} + \pi = \frac{4\pi}{3}. \] 2. **For \( \tan(t) = -\sqrt{3} \)**: - The reference angle for \( \tan(t) = -\sqrt{3} \) is also \( \frac{\pi}{3} \). - The angles satisfying this in the interval \( [0, 2\pi] \) are: \[ t = \frac{\pi}{3} + \frac{3\pi}{2} = \frac{2\pi}{3} \quad \text{and} \quad t = \frac{4\pi}{3} + \frac{3\pi}{2} = \frac{5\pi}{3}. \] So, the solutions to the equation \( \tan(t) = \frac{3}{\tan(t)} \) in the interval \( [0, 2\pi] \) are: \[ t = \frac{\pi}{3}, \frac{2\pi}{3}, \frac{4\pi}{3}, \frac{5\pi}{3}. \]

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