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EAMCET Engineering 2002 Solved Paper
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Section:
Mathematics
© examsiri.com
Question :
107 of 200
Marks:
+1
,
-0
(
a
+
b
)
â‹…
(
b
+
c
)
×
(
a
+
b
+
c
)
is equal to
0
−
[
a
b
c
]
2
[
a
b
c
]
[
a
b
c
]
Validate
Solution:
‌
(
a
+
b
)
â‹…
(
b
+
c
)
×
(
a
+
b
+
c
)
‌
=
(
a
+
b
)
â‹…
(
b
×
a
+
0
+
b
×
c
+
c
×
a
+
c
×
b
+
0
)
‌
=
(
a
+
b
)
â‹…
(
b
×
a
+
c
×
a
)
‌
=
a
(
b
×
a
)
+
a
(
c
×
a
)
+
b
(
b
×
a
)
+
b
â‹…
(
c
+
a
)
‌
=
0
+
0
+
0
+
[
b
c
a
]
=
[
a
b
c
]
© examsiri.com
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