If `|veca.vecb|=sqrt(3)|vecaxxvecb|` then the angle between `veca and vecb` is (A) `pi/6` (B) `pi/4` (C) `pi/3` (D) `pi/2`

If |vecaxxvecb|=1/sqrt3|veca.vecb| , find the angle between vec a and vecb

If veca and vecb are two vectors, such that veca.vecblt0 and |veca.vecb|=|vecaxxvecb| then the angle between the vectors veca and vecb is (a) pi (b) (7pi)/4 (c) pi/4 (d) (3pi)/4

If |vecc|=2 , |veca|=|vecb|=1 and vecaxx(vecaxxvecc)+vecb=vec0 then the acute angle between veca and vecc is (A) pi/6 (B) pi/4 (C) pi/3 (D) (2pi)/3

If veca,vecb and vecc are non coplanar and unit vectors such that vecaxx(vecbxxvecc)=(vecb+vecc)/sqrt2 then the angle between veca and vecb is (A) (3pi)/4 (B) pi/4 (C) pi/2 (D) pi

If veca,vecb and vecc are non coplanar and unit vectors such that vecaxx(vecbxxvecc)=(vecb+vecc)/sqrt2) then the angle between vea and vecb is (A) (3pi)/4 (B) pi/4 (C) pi/2 (D) pi

IF |veca|=sqrt(3), |vecb|=2 and |veca-vecb|=3 find the angle between veca and vecb .

If veca,vecb,vecc are unit vectors such that veca is perpendicular to vecb and vecc and |veca+vecb+vecc|=1 then the angle between vecb and vecc is (A) pi/2 (B) pi (C) 0 (D) (2pi)/3

The non zero vectors veca,vecb, and vecc are related byi veca=8vecb nd vecc=-7vecb. Then the angle between veca and vecc is (A) pi (B) 0 (C) pi/4 (D) pi/2

Let the vectors veca and vecb be such that |veca|=3 and | vecb|=(sqrt(2))/3 , then vecaxx vecb is a unit vector, if the angle between veca and vecb (A) pi//6 (B) pi//4 (C) pi//3 (D) pi//2

If veca,vecb,vecc are three coplanar unit vector such that vecaxx(vecbxxvecc)=-vecb/2 then the angle betweeen vecb and vecc can be (A) pi/2 (B) pi/6 (C) pi (D) (2pi)/3