Asked by Nathan
How do I find the quadrant in which angle thada may lie if cos thada > 0 and tan thada < 0?
Answers
Answered by
Henry
cos(theta)>0 in Q1, and Q4.
tan(theta)<0 in Q2, and Q4.
Q4 satisfies both conditions. Therefore, angle theta lies in Q4.
tan(theta)<0 in Q2, and Q4.
Q4 satisfies both conditions. Therefore, angle theta lies in Q4.
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