a Express 7 sin 2 x 4 cos 2 x in the form a b sin 2 x b State the range of the function f(x) 7 sin 2 x 4 cos 2 x, for the domain 0 x 2 ...

aFrom the trigonometric identitywe know that sin 2 x cos 2 x 1 Eq1 As we have given ...

a. Express 7 sin 2 x + 4 cos 2 x in the form a + b

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a. Express 7 sin²x + 4 cos²x in the form a + b sin²x.

b. State the range of the function f(x) = 7 sin² x + 4 cos²x, for the domain 0 ≤ x ≤ 2π.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

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Authors: Sue Pemberton, Julian Gilbey

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a. Express 7 sin 2 x + 4 cos 2 x in the form a + b

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aFrom the trigonometric identitywe know that sin 2 x cos 2 x 1 Eq1 As we have given ...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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