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13.
Geometric
progression
.
3
+
3
x
2
+
3
X
22
+
3
X
2
3 .....
3
x
2
n
-1
=
ni
(3
X
21)
i=O
Ex.13 3x2 =6
3 x 22= 12
3 x 2
3
=
24
n-1
3x2
Steps:
Operation
Display
Note
1
0
0
}
Clears No. 1 register
2
§J
0
& memory
3
0
e
0
Tabulation dial
4
0~
0
Constant key
5
3
3
6
8
3
(=
3 x 2°)
7
8
I
@
2
3
2
@
lamp
on
9
@
3
10
8
6
(=
3 x 2)
11
8
12
(=
3 x 22)
12
13
I
I
8
8
24
48
(=
3 x 2
3
)
(=
3 x 24)
14
8
96
(=
3
lS.
2
s )
15
8
192
6-\
(=
.!:
(3 x
i»)
I
1= 0
Note:
This example
is
in the case of N
=
6.
24
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