NDA Math Vector Algebra

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Consider the following for the next two (02) items that follow:
Let
a
=
i
+
j
,
b
=3
i
+4
k
and
b
=
c
+
d
,where
c
is parallel to
a
and
d
is perpendicular to
a
[NDA II 2016]
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Question : 62 of 101
 
Marks: +1, -0
If
d
=x
i
+y
j
+z
k
, then which of the following equations is/are correct?
1. yx=4
2. 2z3=0
Select the correct answer using the code given below:
[NDA II 2016]
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