Question: The function is defined for the domain 0 x 2. a. Find the range of f . b. Find f 1 (x) and

The function

* ( 1 ) - 5 2 f(x) = 4 cos

is defined for the domain 0 ≤ x ≤ 2π.

a. Find the range of f . 

b. Find f−1(x) and state its range.

* ( 1 ) - 5 2 f(x) = 4 cos

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