a Show that the equation 8sin 2 2 cos 2 cos 6 can be written in the form 6 cos 2 cos 2 0 b Hence, solve the equation 8sin 2 2 cos 2 cos 6 for 0 360 ...

a We start by using the trigonometric identity sin cos 1 to rewrite the equation 8sin 2cos cos 6 Usi ...

a. Show that the equation 8sin 2 + 2 cos 2 cos = 6

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a. Show that the equation 8sin²θ + 2 cos²θ − cosθ = 6 can be written in the form 6 cos²θ + cosθ − 2 = 0.
b. Hence, solve the equation 8sin²θ + 2 cos²θ − cosθ = 6 for 0° ≤ θ ≤ 360°.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:37 AM

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a. Show that the equation 8sin 2 + 2 cos 2 cos = 6

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a We start by using the trigonometric identity sin cos 1 to rewrite the equation 8sin 2cos cos 6 Usi...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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