Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 5 - Trigonometric Identities - Section 5.1 Fundamental Identities - 5.1 Exercises - Page 195: 70

Answer

$$\frac{1+\cot\theta}{\cot\theta}=\tan\theta+1$$

Work Step by Step

$$A=\frac{1+\cot\theta}{\cot\theta}$$ $$A=\frac{1}{\cot\theta}+\frac{\cot\theta}{\cot\theta}$$ $$A=\frac{1}{\cot\theta}+1$$ - Reciprocal Identity: $$\cot\theta=\frac{1}{\tan\theta}$$ So, we can rewrite like this: $$\tan\theta=\frac{1}{\cot\theta}$$ And we replace into $A$: $$A=\tan\theta+1$$
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