Question: need help with this thanks. 1. Let f(x) = -2 cos (Tz). (a) (4 points) Determine the range of f(x). (b) (4 points) Determine the

need help with this thanks. 1. Let f(x) = -2 cos

need help with this thanks.

1. Let f(x) = -2 cos (Tz). (a) (4 points) Determine the range of f(x). (b) (4 points) Determine the amplitude of f(x). (c) (4 points) Determine the period of f(x). (d) (4 points) Determine the horizontal shift

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