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AP EAMCET Engineering 22 Apr 2019 Shift 2 Paper

Section: Mathematics
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Question : 31 of 160
 
Marks: +1, -0
If
→
a
 =
^
i
−
^
j
−
^
k
 ,
→
b
 = 2
^
i
−3
^
j
+
^
k
 and
→
p1
 ,
→
p2
 are the orthogonal projection vectors of
→
a
 on
→
b
 and
→
b
 on
→
a
 respectively, then )
→
p1
+
→
p2
) . (
→
p1
−
→
p2
) =
Validate
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