यदिबिन्दुओ (1,-1) तथा (-2,m) के स्थितिसदिशbaraऔर barb है , तब mका मानज्ञातकीजिएजबकि baraतथा barb...

If abs(bara)=abs(barb)=1 and [[bara, barb ,baraxxbarb]]=1/4 , then mangle(bara,barb) =

If barA equiv (1 , 1, 1) and barC equiv (0, 1, -1) are given vectors, and barB is a vector such that barA xx barB = barC and barA· barB = 3 , then : 3barB = ...