Sketch the graph of a function f that satisfies all the following conditions :(a) Its domain is [_2,2].

Sketch the graph of a function f that satisfies all the following conditions :(a) Its domain is [_2,2].

(b) f(-2)=f(-1)=f(1)=f(2)

(c) It is discontinuous at -1 and 1

(d) It is right continuous at -1 and left continuous at 1.

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