CASIO
fx-991ES PLUS - eduCentral
SHIFT
ALPHA
0
DEG
COMP
STAT
EQN
SHIFT
ALPHA
CLR
REPLAY
OFF
MODE
ON
x!
x⁻¹
nPr
nCr
Rec
Pol(
√
x²
∛
^
d/c
ab/c
x²
√
∛
x³
10ˣ
log
eˣ
ln
%
(-)
sin⁻¹
sin
cos⁻¹
cos
tan⁻¹
tan
RND
)
STO
RCL
←
ENG
(
)
,
S⇔D
7
8
9
DEL
AC
4
5
6
×
÷
1
2
3
+
-
0
.
×10ˣ
Ans
=