Quadrant is a quarter of a coordinate plane
The location of angle t is in quadrant 3
The trigonometry equations are given as:
tan(t)>0 and cos(t)<0
The cosine of an angle is negative in the following quadrants
The cosine of an angle is positive in the following quadrants
The intersection of the above points is quadrant 3
This means that the angle is in quadrant 3
Hence, the true option is (D) III
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