20. Explain why the function is discontinuous at the given number a. Sketch the graph of the

20. Explain why the function is discontinuous at the given number a. Sketch the graph of the function.

f(x)={(cosx if x⋖0 @0 if x=0 1-x^2 if x⋖0),a=0

Calculus: Early Transcendentals
Chapter 2: Limits and Derivatives
Section 2.5: Continuity
Problem 20

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