Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 6 - Section 6.2 - Trigonometry of Right Triangles - 6.2 Exercises: 18

Answer

x=4$\sqrt 3$/3

Work Step by Step

tan30°=4/x; x=4/tan30°=4/$\sqrt 3$=4$\sqrt 3$/3
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