Question: Explain why the function is discontinuous at the given number a. Sketch the graph of the function. COS X if x < 0 f(x)= =
Explain why the function is discontinuous at the given number
a. Sketch the graph of the function. 
COS X if x < 0 f(x)= = 0 if x = 0 a=0 1-x if x>0
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