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(A) h(x,y)= sinh r cos y+ icosh r sin y. O (B) h(r,y) = e" cos y + ie" sin y. O (C) h(r,y) = cos ry + i sinh y. %3D %3D %3D

(A) h(x,y)= sinh r cos y+ icosh r sin y. O (B) h(r,y) = e" cos y + ie" sin y. O (C) h(r,y) = cos ry + i sinh y. %3D %3D %3D

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 77E
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Complex Analysis :
Which one of the following functions is harmonic-function? O (A) h(x,y) = sinh r cos y +i cosh r sin y. O (B) h(x, y) = e* cos y + ie sin y. O (C) h(x,y) = cos ry + isinhy. O (D) h(r,y) = e cos 2ry + ie" %3D %3D sin 2ry. %3D
Transcribed Image Text:Which one of the following functions is harmonic-function? O (A) h(x,y) = sinh r cos y +i cosh r sin y. O (B) h(x, y) = e* cos y + ie sin y. O (C) h(x,y) = cos ry + isinhy. O (D) h(r,y) = e cos 2ry + ie" %3D %3D sin 2ry. %3D
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