If `bar(A)`and `bar(B)`are two vectors then A new vector parallel to `bar(A)`having the magnitude of `bar(B)`is

If bar(a) and bar(b) are unit vectors then the vectors (bar(a)+bar(b))xx(bar(a)xxbar(b)) is parallel to the vector

bar(a),bar(b),bar(c ) are three coplanar vectors, If bar(a) is not parallel to bar(b) , Show that

If bar(a) and bar(b) are two vectors perpendicular each other, prove that (bar(a) + bar(b))^(2) = (bar(a) - bar(b))^(2)

If bar(a)=bar(i)-2bar(j)-bar(k) , bar(b)=-2bar(j)+bar(k) are two vectors and bar(c) is a vector such that bar(c)=bar(a) times bar(b) then |bar(a)|:|bar(b)|:|bar(c)| =

If bar(a) and bar(b) are unit vectors such that [bar(a),bar(b),bar(a)xxbar(b)] is 1/4, then angle between bar(a) and bar(b) is

If bar(a),bar(b) aretwo unit vectors such that |bar(a)xxbar(b)|=2 then the value of [bar(a)bar(b)bar(a)xxbar(b)] is

Given that bar(a) and bar(b) are two unit vectors such that angle between bar(a) and bar(b) is cos ^(-1)((1)/(4)). If bar(c) be a vector in the plane of bar(a) and bar(b), such that |vec c|=4,vec c xxvec b=2vec a xxvec b and vec c=lambdavec a+mubar(b) then,find

bar(a) and bar(b) are two unit vectors and theta be the angle between them then sin theta/2 : (A) |bar(a)-bar(b)| (B) |bar(a)+bar(b)| (C) (1)/(2)|bar(a)-bar(b)| (D) (1)/(2)|bar(a)+bar(b)|

According to parallelogram law of vectors the magnitude of resultant of two vectors bar(A) and bar(B) is

If bar(a),bar(b) are unit vectors then unit vector along bisector of Delta AOB is (bar(a)+bar(b))/(|bar(a)+bar(b)|) or ((a+hat b))/(+-|a+hat b|) Vector along internal angular bisector is +-lambda((bar(a))/(|bar(a)|)+(bar(b))/(|b|))