i Sketch, on a single diagram, the graphs of y cos 2 and ii Write down the number of roots of the equation 2cos2 1 0 in the interval 0 2 iii Deduce the number of roots of the equation 2cos2 1 0 in the interval 10 20 y 2 for 0 0 2n ...

i Here is the sketch of the graphs of y cos 2 and y 12 on the same diagram The g ...

i. Sketch, on a single diagram, the graphs of y = cos 2 and ii. Write down

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i. Sketch, on a single diagram, the graphs of y = cos 2θ and

ii. Write down the number of roots of the equation 2cos2θ − 1 = 0 in the interval 0 ≤ θ≤ 2π.
iii. Deduce the number of roots of the equation 2cos2θ − 1 = 0 in the interval 10π ≤ θ ≤ 20π.

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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. Sketch, on a single diagram, the graphs of y = cos 2 and ii. Write down

Question:

y = 2 for 0 ≤ 0 < 2n.

Step by Step Answer:

i Here is the sketch of the graphs of y cos 2 and y 12 on the same diagram The g...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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