`veca` and `vecc` are unit vectors and `|vecb|=4` with `vecaxxvecb=2vecaxxvecc`. The angle between `veca` and `vecc` is `cos^(-1)(1/4)` Then `vecb-2vecc=lambdaveca`, if `lambda` is

veca and vecc are unit vectors |vecb|=4 with vecaxxvecb=2(vecaxxvecc) . The angle between veca and vecc is cos^-1(1/4). Then vecb-2vecc=lamdaveca, if lamda is (A) 3 (B) -4 (C) 4 (D) -1/4

Let veca and vecc be unit vectors such that |vecb|=4 and vecaxxvecb=2(vecaxxvecc) . The angle between veca and vecc is cos^(-1)(1/4) . If vecb-2vecc=lamdaveca then lamda=

veca and vecc are unit vectors and |vecb|=4 the angle between veca and vecc is cos ^(-1)(1//4) and vecb - 2vecc=lambdaveca the value of lambda is

If three vectors veca, vecb,vecc are such that veca ne 0 and veca xx vecb = 2(veca xx vecc),|veca|=|vecc|=1, |vecb|=4 and the angle between vecb and vecc is cos^(-1)(1//4) , then vecb-2vecc= lambda veca where lambda is equal to:

Let vea, vecb and vecc be unit vectors such that veca.vecb=0 = veca.vecc . It the angle between vecb and vecc is pi/6 then find veca .

Let veca , vecb , vecc be unit vectors such that veca .vecb =0=veca.vecc . If the angle between vecb and vecc " is " pi/6 , " then " veca equals

Let veca, vecb, vecc be three unit vectors and veca.vecb=veca.vecc=0 . If the angle between vecb and vecc is pi/3 then find the value of |[veca vecb vecc]|

Let veca, vecb, vecc be three unit vectors and veca.vecb=veca.vecc=0 . If the angle between vecb and vecc is pi/3 then find the value of |[veca vecb vecc]|

If veca, vecb,vecc are unit vectors such that veca.vecb = 0= veca.vecc and the angle between vecb and vecc is pi//3 then the value of |vecaxxvecb -veca xx vecc| is

If veca and vecb are two vectors such that |veca|=1, |vecb|=4, veca.vecb=2 . If vecc=(2veca xx vecb)-3vecb , then the angle between veca and vecc is