In Exercises 1 and 2, use a graphing utility to graph the function. Use the graph to

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In Exercises 1 and 2, use a graphing utility to graph the function. Use the graph to determine the behavior of the function as x → c. (Note: The notation x → c+ indicates that x approaches c from the right and x → c - indicates that x approaches c from the left.)
(a) x → 0 +
(b) x → 0 -
(c) x → π +
(d)x → π-
1. f (x) = cot x
2. f (x) = csc x
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