Casio ClassPad 300 User Manual page 111

k Hyperbolic Functions (sinh, cosh, tanh) and Inverse Hyperbolic Functions
(sinh –1 , cosh –1 , tanh
Problem
sinh3.6 = 18.28545536
cosh1.5 – sinh1.5
= 0.2231301601
e –1.5
= 0.2231301601*
20
–1
cosh ( )
15
= 0.7953654612
x
Solve for given
x
tanh(4 ) = 0.88.
–1
tanh 0.88
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 = e
20021201
cat 2D
=1 3.6 w
=2 1.5 )-11.5
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
x
±
. Solving the problem above this one
Operation