VectorHard
Question
If the points P,Q,R,S are respectively î − 
, −î + 2ĵ, 2î − 3
and 3î − 2ĵ − then projection of 
on 
is-
, −î + 2ĵ, 2î − 3 and 3î − 2ĵ − then projection of on is-Options
A.4/3
B.− 4/3
C.3/4
D.− 3/4
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