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KEAM 2018 Math Paper
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© examsnet.com
Question : 85
Total: 120
(
7
C
0
+
7
C
1
)
+
(
7
C
2
+
7
C
3
)
+
.
.
.
+
(
7
C
6
+
7
C
6
)
=
2
8
−
2
2
7
−
1
2
7
2
8
−
1
2
7
−
2
Validate
Solution:
(
7
C
0
+
7
C
1
)
+
(
7
C
2
+
7
C
3
)
+
.
.
.
+
(
7
C
6
+
7
C
7
)
=
7
C
0
+
7
C
1
+
.
.
.
+
7
C
7
=
2
7
[
∵
C
0
+
C
1
+
C
2
+
.
.
.
+
C
n
=
2
n
]
© examsnet.com
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