May somebody help me with this question? It is in the picture.
2 answers:
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Given:
and
.
To find:
The quadrant.
Solution:
We know that,
In I quadrant, all trigonometric ratios are positive.
In II quadrant, only are positive and others are negative.
In III quadrant, only are positive and others are negative.
In IV quadrant, only are positive and others are negative.
We have,
and
.
Here, is positive and
is negative. So,
lies in the III quadrant.
Therefore, the correct option is C, i.e., III.