Casio ClassPad 330 User Manual page 131

k Hyperbolic Functions (sinh, cosh, tanh) and Inverse Hyperbolic Functions
(sinh , cosh , tanh
–1 –1
Problem
sinh3.6 = 18.28545536
cosh1.5 – sinh1.5
= 0.2231301601
e
= 0.2231301601*
–1.5
20
cosh ( )
–1
15
= 0.7953654612
x
Solve for given
x
tanh(4 ) = 0.88.
tanh 0.88
–1
x
=
4
= 0.3439419141
* This problem checks whether cosh
(cosh1.5 – sinh1.5) and comparing it with this problem's solution shows that they are equal.
2-4-4
Function Calculations
)
–1
Use this keyboard:
mth abc
TRIG Func
TRIG Func
MATH Func

TRIG Func
TRIG Func
x x
 sinh =
20060301
cat 2D
=1 3.6 w
=2 1.5 )-1 1.5
w
e - 1.5 w

=@ 20 / 15 w or
=@)N 20 c
15 w
=# 0.88 )/ 4 w or
) N 9=#
0.88 )c 4 w
e
x
. Solving the problem above this one

Operation