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TS EAMCET 6-Aug-2021 Shift 1 Question Paper
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Section:
Mathematics
© examsiri.com
Question :
34 of 160
Marks:
+1
,
-0
Suppose ABCDE is a pentagon. The resultant vector of the vectors
−
AB
,
−
AE
,
−
BC
,
−
DC
,
−
ED
and
−
AC
is
3
−
AC
3
−
AD
3
−
AE
2
−
AB
Validate
Solution:
A
B
+
A
E
+
B
C
+
D
C
+
E
D
+
A
C
=
(
A
B
+
B
C
)
+
(
A
E
+
E
D
)
+
(
D
C
+
A
C
)
=
A
C
+
(
A
D
+
D
C
)
+
A
C
=
A
C
+
A
C
+
A
C
=
3
A
C
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