If `veca` satisfies `vecaxx(hati+2hatj+hatk)=hati-hatk" then " veca` is equal to

If veca=2hati-3hatj+4hatk, veca.vecb=2 and veca xx vecb=hati+2hatj+hatk , then vecb is equal to

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

If veca=2hati-3hatj-hatk and vecb=hati+4hatj-2hatk , then vecaxxvecb is

If vectors veca =hati +2hatj -hatk, vecb = 2hati -hatj +hatk and vecc = lamdahati +hatj +2hatk are coplanar, then find the value of lamda .

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 :

If veca=2hati + hatj + hatk , vecb=hati + 2hatj + 2hatk then [veca vecb veci] hati + [veca vecb vecj] hatj + [veca vecb hatk] k is equal to

Find the projection of vecb+vecc on veca where veca=hati+2hatj+hatk, vecb=hati+3hatj+hatk and vecc=hati+hatk .

If veca = (hati + hatj +hatk), veca. vecb= 1 and vecaxxvecb = hatj -hatk , " then " vecb is (a) hati - hatj + hatk (b) 2hati - hatk (c) hati (d) 2hati

If veca.veci=veca.(hati+hatj)=veca.(hati+hatj+hatk) . Then find the unit vector veca .

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