a. Show that the equation sin(x + 30) = 5 cos(x 60) can be written in

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a. Show that the equation sin(x + 30°) = 5 cos(x − 60°) can be written in the form cot x = − √3.

b. Hence solve the equation sin(x + 30°) = 5 cos(x − 60°) for −180°< x <180°.

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Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook

ISBN: 9781108407199

1st Edition

Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey

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Question Posted: Mar 14, 2023 07:17 AM

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a. Show that the equation sin(x + 30) = 5 cos(x 60) can be written in

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a We can use the following trigonometric identities sinab sinacosb cosasinb cosab cosacosb sinasinb ...View the full answer

Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook

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