i) Show that the equation 2 tan x = cos x can be written as a quadratic

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i) Show that the equation 2 tan x = cos x can be written as a quadratic equation in sin x.

ii) Solve the equation 2 tan x = cos x for 0° ≤ x ≤ 180°.

iii) Hence, state the set of values of x for
which 2 tan (x − 30°) = cos (x − 30°) for
0° ≤ x ≤ 180°.

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Complete Pure Mathematics 1 For Cambridge International AS & A Level

ISBN: 9780198427438

2nd Edition

Authors: Jean Linsky, Brian Western, James Nicholson

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Question Posted: Apr 13, 2023 10:58 AM

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i) Show that the equation 2 tan x = cos x can be written as a quadratic

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i To show that the equation 2 tan x cos x can be written as a quadratic equation in sin x we can use ...View the full answer

Complete Pure Mathematics 1 For Cambridge International AS & A Level

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