113.
Find all points of discontinuity of f, where f is defined by
Function f is defined at all points of the real line.
Let c be any real number.
Three cases arise :
Case I ; c < 1
∴ f is continuous at all points x < 1.
Case II : c > 1
∴ f is continuous at all points x > 1.
Case III ; c = 1
∴ f is continuous at x = 1
∴ f is continuous at all points of domain.
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