Answer
Quadrant II and Quadrant IV
Work Step by Step
RECALL:
The cotangent function is negative in Quadrant II and Quadrant IV.
Thus, if $\cot{\theta}=-\dfrac{21}{20}$. then the angle $\theta$ terminates either in Quadrant II or Quadrant IV.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 1 - Section 1.3 - Definition I: Trigonometric Functions - 1.3 Problem Set - Page 32: 48
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