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Methods2025 Exam 2 Section A · Q1CAS active1 mark

Circular function with a given range

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A function that has a range of $[6, 12]$ is

1 mark

A

f : R \to R,\ f(x) = 6 + 3\cos(9x)

B

f : R \to R,\ f(x) = 6 + 6\cos(3x)

C

f : R \to R,\ f(x) = 9 - 3\cos(6x)

D

f : R \to R,\ f(x) = 9 - 6\cos(3x)

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