Solve each of these equations for 0 x 360. a. 4 cos 2 x =
Question:
Solve each of these equations for 0° ≤ x ≤ 360°.
a. 4 cos2x = 1
b. 4tan2x = 9
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a We can start by using the identity cos2x 12 12 cos2x which gives 4 cos2x 412 12 cos2x 2 2 cos2x So ...View the full answer
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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