The component vector of ¯b Perpendicular to ¯a is
Comp. vector of ¯b for to ¯a=¯b−(−¯bׯa)¯a|¯a|2=(¯a.¯a)¯b−(¯a.¯b)¯a|¯a|2=¯a×(¯bׯa)|¯a|2
If a, b ϵ R+ [ R+ denote real positive numbers] then aba+b is