i. Solve the equation 4sin 2 x + 8cosx 7 = 0 for 0 x

Question:

i. Solve the equation 4sin²x + 8cosx − 7 = 0 for 0° ≤ x ≤ 360°.

ii. Hence find the solution of the equation

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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 06:36 AM

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i. Solve the equation 4sin 2 x + 8cosx 7 = 0 for 0 x

Question:

4 sin² (10) + 8 cos ( 0 ) - 7 = 0 for 0° = 0 = 360°.

Step by Step Answer:

i We can rewrite the equation as 41cos2 x 8cos ...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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