Problem

In which quadrant does $\theta$ lie if the following statements are true:
\[
\csc \theta< 0 \text { and }(\csc \theta)(\cos \theta)< 0
\]

Answer

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Answer

Final Answer: \(\theta\) lies in the \(\boxed{\text{third quadrant}}\).

Steps

Step 1 :The cosecant function, \(\csc \theta\), is negative in the third and fourth quadrants.

Step 2 :The cosine function, \(\cos \theta\), is negative in the second and third quadrants.

Step 3 :Therefore, if the product of \(\csc \theta\) and \(\cos \theta\) is negative, then one of the functions must be positive and the other must be negative.

Step 4 :This can only occur in the third quadrant, where \(\csc \theta\) is negative and \(\cos \theta\) is positive.

Step 5 :Final Answer: \(\theta\) lies in the \(\boxed{\text{third quadrant}}\).

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