Answer
$2\sin\theta$
Work Step by Step
Given expression is-
$\cos\theta\tan\theta + \sin\theta$
= $\cos\theta\times\frac{\sin\theta}{\cos\theta} + \sin\theta$
=$ \sin\theta + \sin\theta $
= $2\sin\theta$
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 1.5 - More on Identities - 1.5 Problem Set - Page 45: 28
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