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How to find the cosine of an angle Practice Test
•2 QuestionsQuestion
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Q1
If tan A=\frac{b}{c}$, where b>0 and c>0 and $\frac{pi }{2}$<A<pi,
then what is cos A?
If tan A=\frac{b}{c}$, where b>0 and c>0 and $\frac{pi }{2}$<A<pi,
then what is cos A?
