etermine two coterminal angles (one positive and one negative) for each angle. Give your answers in radians. (E (a) 3π 4 11 (b) 5π 4 9π 4 TT 3π a - π

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ISBN:9780470458365
Author:Erwin Kreyszig
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Please help with problem b. thank you

**Determine two coterminal angles (one positive and one negative) for each angle. Give your answers in radians. (Enter your answers as comma-separated lists.)**

---

**(a) \( \frac{3\pi}{4} \)**

\[ 
\boxed{ -\frac{5\pi}{4}, \frac{11\pi}{4}}
\]

**(b) \( -\frac{9\pi}{4} \)**

\[ 
\boxed{ -\frac{\pi}{4}, \frac{3\pi}{4}}
\]
Transcribed Image Text:**Determine two coterminal angles (one positive and one negative) for each angle. Give your answers in radians. (Enter your answers as comma-separated lists.)** --- **(a) \( \frac{3\pi}{4} \)** \[ \boxed{ -\frac{5\pi}{4}, \frac{11\pi}{4}} \] **(b) \( -\frac{9\pi}{4} \)** \[ \boxed{ -\frac{\pi}{4}, \frac{3\pi}{4}} \]
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