4. Using the definition of sech x ,x 0 in terms of e , prove that 1+V1-x2 sech x = In ,0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Solve detailly 4(i) and (ii) showing clearly each step and explanation.

4. Using the definition of sech x ,x 20 in terms of ex, prove that
1+V1-x2
sech
x = In
,0<x <1
Hence, or otherwise, show that
d
-1
(i)
(sech-1x):
dx
xV1- x2
1
1
In(2+ v3)
2.
(ii)
sech 1
x dx:
%3D
11
Never dream for success but work for it
Transcribed Image Text:4. Using the definition of sech x ,x 20 in terms of ex, prove that 1+V1-x2 sech x = In ,0<x <1 Hence, or otherwise, show that d -1 (i) (sech-1x): dx xV1- x2 1 1 In(2+ v3) 2. (ii) sech 1 x dx: %3D 11 Never dream for success but work for it
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