Solve each of these equations for 0 x 360. a. tan 2 x + 2
Question:
Solve each of these equations for 0° ≤ x ≤ 360°.
a. tan2 x + 2 tan x – 3 = 0
b. 2 sin2 x + sin x – 1 = 0
c. 3 cos2 x – 2 cos x – 1 = 0
d. 2 sin2 x – cos x – 1 = 0
e. 3 cos2 x – 3 = sin x
f. sin x + 5 = 6 cos2 x
g. 2 cos2 x – sin2 x – 2 sin x – 1 = 0
h. 1 + tan x cos x = 2 cos2 x
i. 3 cos x = 8 tan x
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a Letting u tanx we have a quadratic equation u2 2u 3 0 Factoring we get u 3u 1 0 So u 3 or u 1 Solv...View the full answer
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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