Solve the following equations i 4 sin 2x 5 cos 2x 0 for 0 x 180 ii cot2 y 3 cosec y 3 for 0 y 360 iii cos(z 4) for 0 z 2 radians, giving each answer as a multiple of ...

i We can begin by using the identity sin 2x 2 sin x cos x and cos 2x cos2 x sin2 x 1 2sin2 x Substit ...

Solve the following equations. i. 4 sin 2x + 5 cos 2x = 0 for 0

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Solve the following equations.

i. 4 sin 2x + 5 cos 2x = 0 for 0° ≤ x ≤ 180°.

ii. cot2 y + 3 cosec y = 3 for 0° ≤ y ≤ 360°

iii. cos(z + π/4) = - ½ for 0 ≤ z ≤ 2π radians, giving each answer as a multiple of π

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Solve the following equations. i. 4 sin 2x + 5 cos 2x = 0 for 0

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i We can begin by using the identity sin 2x 2 sin x cos x and cos 2x cos2 x sin2 x 1 2sin2 x Substit...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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