Which of the following is false? a) The cosine function is differentiable everywhere. b) A rational function cannot be differentiable everywhere. c) A polynomial function is infinitely differentiable. d) A piecewise defined function may be differentiable everywhere in its domain.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.1: Polynomial Functions Of Degree Greater Than
Problem 36E
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Which of the following is false?
a) The cosine function is differentiable everywhere.
b) A rational function cannot be differentiable everywhere.
c) A polynomial function is infinitely differentiable.
d) A piecewise defined function may be differentiable everywhere in its domain.
Transcribed Image Text:Which of the following is false? a) The cosine function is differentiable everywhere. b) A rational function cannot be differentiable everywhere. c) A polynomial function is infinitely differentiable. d) A piecewise defined function may be differentiable everywhere in its domain.
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