Evaluate + , if x = 10, y = -5, and z = -2.
2 answers:
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Answer:
-2
Step-by-step explanation:
We want to evaluate;
We use the reciprocals of trigonometric ratios to obtain;
The 960 degree angle makes an angle of 60 degree with the positive direction of the x-axis and it is in the 3rd quadrant.
This implies that;
We use special trigonometric ratios to obtain;