If `veca=(hati-2hatj)/(sqrt(5)) and vecb=(2hati+hatj+3hatk)/(sqrt(14)),` then the value of `(2veca+vecb)".[(veca xx vecb)xx(veca-2vecb)]`

If veca and vecb are vectors in space given by veca= (hati-2hatj)/sqrt5and vecb= (2hati + hatj + 3hatk)/sqrt14 then find the value of (2veca + vecb) . [(vecaxxvecb) xx (veca- 2vecb)]

veca =1/sqrt(10)(3hati + hatk) and vecb =1/7(2hati +3hatj-6hatk) , then the value of (2veca-vecb).[(vecaxxvecb)xx(veca+2vecb)] is:

If vecA= 4hati+nhatj-2hatk and vecB=2hati+3hatj+hatk , then findt the value of n so that vecA bot vecB .

If vecA= 4hati+nhatj-2hatk and vecB=2hati+3hatj+hatk , then findt the value of n so that vecA bot vecB .

If veca = 2hati -3hatj-1hatk and vecb =hati + 4hatj -2hatk " then " veca xx vecb is

If veca=hati+hatj + hatk and vecb = hati - 2 hatj+hatk then find the vector vecc such that veca.vecc =2 and veca xx vecc=vecb .

If veca = hati+hatj-2hatk, vecb=2hati-3hatj+hatk the value of (2veca+3vecb) . (2vecbxx3veca) is :

If veca=hati+hatj+hatk, vecb=hati-hatj+hatk, vec c=hati+2hatj-hatk , then the value of |(veca*veca,veca*vecb, veca*vecc),(vecb*veca, vecb *vecb,vecb*vecc),(vec c*veca, vec c*vec b,vec c*vec c)| is equal to :

Let veca=hati-hatj+hatk, vecb=2hati+hatj+hatk and vecc=hati+hatj-2hatk , then the value of [(veca, vecb, vecc)] is equal to

If veca = (-hati + hatj - hatk) and vecb = (2hati- 2hatj + 2hatk) then find the unit vector in the direction of (veca + vecb) .