KEAM 2018 Math Paper

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Question : 52 of 120
 
Marks: +1, -0
Let
→
a
=
⋀
i
+
⋀
j
+
⋀
k
,
→
b
=
⋀
i
+3
⋀
j
+5
⋀
k
and
→
c
=7
⋀
i
+
⋀
9
+11
⋀
k
.
Then the area of the parallelogram with diagonals
→
a
+
→
b
and
→
b
+
→
c
is
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