The function f is such that f(x) 2 sin 2 x 3cos 2 x for 0 x i Express f(x) in the form a b cos 2 x, stating the values of a and b ii State the greatest and least values of f(x) iii Solve the equation f(x) 1 0 ...

i To express fx in the form a b cos2x we will use the identity sin2x cos2x 1 to eliminate sin2 ...

The function f is such that f(x) = 2 sin 2 x 3cos 2 x for

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The function f is such that f(x) = 2 sin²x − 3cos²x for 0 ≤ x ≤ π.

i. Express f(x) in the form a + b cos²x, stating the values of a and b.

ii. State the greatest and least values of f(x).

iii. Solve the equation f(x) + 1 = 0.

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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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Question Posted: Mar 10, 2023 06:35 AM

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The function f is such that f(x) = 2 sin 2 x 3cos 2 x for

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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