If angle θ is in quadrant 3 and the value of sin θ = -3/5, then we can say that; cos θ = -4/5
How to work with Trigonometric Ratios?
We are told that the angle θ is in quadrant 3.
Now, we are told that; sin θ = -3/5
In the third quadrant, only tan θ is positive.
Thus, cos θ will be negative.
Thus;
cos θ = -4/5
Read more about Trigonometric Ratios at; https://brainly.com/question/13276558
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