VectorHard
Question
If î + ĵ + 
, 2î + 5ĵ, 3î + 2ĵ − 3
and î − 6ĵ −
be p.v. of four points A,B,C and D respectively, then the angle between and 
is-
, 2î + 5ĵ, 3î + 2ĵ − 3 and î − 6ĵ − be p.v. of four points A,B,C and D respectively, then the angle between and is-Options
A.π / 4
B.π / 2
C.π
D.None of these
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