
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Please help me solve the problem attached thank you.
![**Consider the equation below. (If an answer does not exist, enter DNE.)**
\( f(x) = 3 \sin(x) + 3 \cos(x), \quad 0 \leq x \leq 2\pi \)
### (a) Find the interval on which \( f \) is increasing. (Enter your answer using interval notation.)
\( \left(0, \frac{\pi}{4}\right) \cup \left(\frac{5\pi}{4}, 2\pi\right) \) (✓)
**Find the interval on which \( f \) is decreasing. (Enter your answer using interval notation.)**
\( \left(\frac{\pi}{4}, \frac{5\pi}{4}\right) \) (✓)
### (b) Find the local minimum and maximum values of \( f \).
- **Local minimum value**: \( \frac{5\pi}{4}, -3\sqrt{2} \) (✗)
- **Local maximum value**: \( \frac{\pi}{4}, 3\sqrt{2} \)
### (c) Find the inflection points.
- \( (x, y) = \) [ ] (smaller x-value)
- \( (x, y) = \) [ ] (larger x-value)
**Find the interval on which \( f \) is concave up. (Enter your answer using interval notation.)**
- [ ]
**Find the interval on which \( f \) is concave down. (Enter your answer using interval notation.)**
- [ ]](https://content.bartleby.com/qna-images/question/bdd649d9-2caf-4d84-abd9-ca7466c27910/caef3314-97e4-4c37-abf9-18794cd626f0/vdx2qe_thumbnail.jpeg)
Transcribed Image Text:**Consider the equation below. (If an answer does not exist, enter DNE.)**
\( f(x) = 3 \sin(x) + 3 \cos(x), \quad 0 \leq x \leq 2\pi \)
### (a) Find the interval on which \( f \) is increasing. (Enter your answer using interval notation.)
\( \left(0, \frac{\pi}{4}\right) \cup \left(\frac{5\pi}{4}, 2\pi\right) \) (✓)
**Find the interval on which \( f \) is decreasing. (Enter your answer using interval notation.)**
\( \left(\frac{\pi}{4}, \frac{5\pi}{4}\right) \) (✓)
### (b) Find the local minimum and maximum values of \( f \).
- **Local minimum value**: \( \frac{5\pi}{4}, -3\sqrt{2} \) (✗)
- **Local maximum value**: \( \frac{\pi}{4}, 3\sqrt{2} \)
### (c) Find the inflection points.
- \( (x, y) = \) [ ] (smaller x-value)
- \( (x, y) = \) [ ] (larger x-value)
**Find the interval on which \( f \) is concave up. (Enter your answer using interval notation.)**
- [ ]
**Find the interval on which \( f \) is concave down. (Enter your answer using interval notation.)**
- [ ]
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