For what values of A in the first quadrant, the expression \frac{cot^{3} A - 3 cot A}{3 cot^{2} A - 1} is positive?
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Signs of Angles in Quadrants
Thus, in the first quadrant, where x and y coordinates are all positive, all six trigonometric functions have positive values. In the second quadrant, only sine and cosecant (the reciprocal of sine) are positive. In the third quadrant, only tangent and cotangent are positive.tep-by-step explanation:
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