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# Co-Terminal Angles

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Find one angle that is NOT co-terminal with the others listed.

a) $$150^o, 510^o, -210^o, 450^o, 870^o$$

b) $$\frac{5\pi}{3},-\frac{5\pi}{3},\frac{11\pi}{3},-\frac{7\pi}{3},\frac{365\pi}{3}$$

Jan 23, 2018

### Best Answer

#1
+18433
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150 + 360 =510   150-360=-210      510+360= 870       450 is the 'odd man out'

5pi/3 +2pi==11pi/3       5pi/3 - 2pi =- pi/3   pi/3-2pi= -5pi/3      5 pi/3 + 60 (2pi) =  365 pi/3

- 7pi / 3    doesn't 'fit'

Jan 23, 2018

### 1+0 Answers

#1
+18433
+1
Best Answer

150 + 360 =510   150-360=-210      510+360= 870       450 is the 'odd man out'

5pi/3 +2pi==11pi/3       5pi/3 - 2pi =- pi/3   pi/3-2pi= -5pi/3      5 pi/3 + 60 (2pi) =  365 pi/3

- 7pi / 3    doesn't 'fit'

ElectricPavlov Jan 23, 2018