© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide For Teachers
87
Inverse Sine
%
Use this formula to find the angle of
the conveyor belt. Round your
answer to the nearest tenth, and
then return to floating decimal
mode.
SIN x = 13/20
Press Display
%
13
W
20
E
<
sin
-1
(13/20)
¹
'
40.54160187
DEG
%
©
"
"
F 0 1 2 3 4 5 6 7 8 9
-
DEG
<
sin
-1
(13/20)
¹
'
40.5
FIX
DEG
%
©
8
sin
-1
(13/20)
¹
'
40.54160187
DEG