(e) Solve for x 4 + sinh(3x) = 4 cosh(3x). (f) Using Euler's formula, ei = cos 0 +j sin 0, derive the following relationships between the hyperbolic and trigonometric functions (i) sin(jx) = j sinh(x). (ii) cos(jx) = cosh(x). %3D

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter5: Exponential And Logarithmic Functions
Section5.2: Applications Of Exponential Functions
Problem 48E
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question e and f

Question 2
(a) Define the following hyperbolic functions directly in terms of the exponential function
(i) sinh(x).
(ii) cosh(x).
(iii) tanh(x).
(b) Sketch, on separate graphs, each of the functions in part (a).
(c) Prove, using the definitions of sinh and cosh in terms of the exponential function, that
cosh(2x) = cosh?(x) + sinh²(x).
(d) Derive the formula
1+ X
In
2
1
tanh-'(x)
1 - x
(e) Solve for x
4 + sinh(3x) = 4 cosh(3x).
(f) Using Euler's formula, el
= cos 0 + j sin 0, derive the following relationships between
the hyperbolic and trigonometric functions
(i) sin(jx) = j sinh(x).
(ii) cos(jx) = cosh(x).
Transcribed Image Text:Question 2 (a) Define the following hyperbolic functions directly in terms of the exponential function (i) sinh(x). (ii) cosh(x). (iii) tanh(x). (b) Sketch, on separate graphs, each of the functions in part (a). (c) Prove, using the definitions of sinh and cosh in terms of the exponential function, that cosh(2x) = cosh?(x) + sinh²(x). (d) Derive the formula 1+ X In 2 1 tanh-'(x) 1 - x (e) Solve for x 4 + sinh(3x) = 4 cosh(3x). (f) Using Euler's formula, el = cos 0 + j sin 0, derive the following relationships between the hyperbolic and trigonometric functions (i) sin(jx) = j sinh(x). (ii) cos(jx) = cosh(x).
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