20060301
I
Hyperbolic Functions (sinh, cosh, tanh) and Inverse Hyperbolic Functions
(sinh
–1
, cosh
–1
, tanh
–1
)
Problem
Use this keyboard:
Operation
mth abc cat 2D
sinh3.6 = 18.28545536 TRIG Func
3.6
U
cosh1.5 – sinh1.5
= 0.2231301601
TRIG Func
1.5
1.5
U
e
–1.5
= 0.2231301601*
G
MATH Func
G
C
1.5
U
cosh
–1
(
20
15
)
= 0.7953654612
TRIG Func
20
15
U
or
-
20
A
15
U
Solve for
x
given
tanh(4
x
) = 0.88.
= 0.3439419141
TRIG Func
0.88
4
U
or
-
0.88
A
4
U_
* This problem checks whether cosh
x
M
sinh
x
=
e
M
x
. Solving the problem above this one
(cosh1.5 – sinh1.5) and comparing it with this problem’s solution shows that they are equal.
2-4-4
Function Calculations
x
=
tanh
–1
0.88
4
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