for z+ - and Let f(z) = for z or (a) Show that is continuous at -n/2.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 78E
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cos r
for z + - and
Let f(z) =
for z= -
or
(a) Show that / is continuous at -n/2.
(b) Show that / is differentiable at /2.
Transcribed Image Text:cos r for z + - and Let f(z) = for z= - or (a) Show that / is continuous at -n/2. (b) Show that / is differentiable at /2.
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