Question 15 • Precalculus
Since secant is the reciprocal of cosine, cos θ = −12/37. Because θ is between π/2 and π, it is in Quadrant II, where sine is positive; using sin² θ + cos² θ = 1 gives sin θ = 35/37. Therefore cot θ = cos θ/sin θ = (−12/37)/(35/37) = −12/35, which is choice B.
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