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Determine Two Angles (One Positive and One Negative, in Radian π4\frac { \pi } { 4 }

Question 19

Multiple Choice

Determine two angles (one positive and one negative, in radian measure) coterminal to the angle π4\frac { \pi } { 4 } .


A) 5π4,7π4\frac { 5 \pi } { 4 } , - \frac { 7 \pi } { 4 }
B) 17π4,11π4\frac { 17 \pi } { 4 } , - \frac { 11 \pi } { 4 }
C) 5π4,19π4\frac { 5 \pi } { 4 } , - \frac { 19 \pi } { 4 }
D) 13π4,11π4\frac { 13 \pi } { 4 } , - \frac { 11 \pi } { 4 }
E) 17π4,7π4\frac { 17 \pi } { 4 } , - \frac { 7 \pi } { 4 }

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