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# Let f (x)= \frac{1}{cos x-1 } for 0 \leq x \leq 2 \pi a. Give the domain of the function f b. Give the intervals of increase and decrease of f.

Let for

a. Give the domain of the function

b. Give the intervals of increase and decrease of

c. Give the coordinates of the local minimum(s) and maximum(s) (if any) of the function