`(a.hati)hati+(a.hatj)hatj+(a.hatk)hatk`

If a=hati+hatj+hatk and b=hati-hatj , then vectors (a*hati+hati+(a*hatj+(a*hatk)hatk,(b*hati)hati+(bhatj)hatj+(b*hatk)hatk and hati+hatj-2hatk

hati*(hatkxx hatj)+hatj*(hati xx hatk)+hatk*(hatj xx hati)+hati*(hati xx hatj)+hatj*(hatj xx hatk) = ………..

a.hati=a.(2hati+hatj)=a.(hatj+hatj+3hatk)=1, then a is equal to

The vectors which is/are coplanar with vectors hati+hatj+2hatk and hati+2hatj+hatk and perpendicular to the vector hati+hatj+hatk is /are (A) hatj-hatk (B) -hati+hatj (C) hati-hatj (D) -hatj+hatk

The vectors which is/are coplanar with vectors hati+hatj+2hatk and hati+2hatj+hatk and perpendicular to the vector hati+hatj+hatk is /are (A) hatj-hatk (B) -hati+hatj (C) hati-hatj (D) -hatj+hatk

The vectors which is/are coplanar with vectors hati+hatj+2hatk and hati+2hatj+hatk and perpendicular to the vector hati+hatj+hatk is /are (A) hatj-hatk (B) -hati+hatj (C) hati-hatj (D) -hatj+hatk

What is the direction of (hati+hatj+hatk)+(hati+hatk-3hatj)+ (hatk+hati-3hatj)+(hati+hatj-3hatk) ?

The value of hati*(hatk xx hatj) + hatj*(hati xx hatk)+hatk*(hatj xx hati) is -

If the vectors hati-hatj, hatj+hatk and veca form a triangle then veca may be (A) -hati-hatk (B) hati-2hatj-hatk (C) 2hati+hatj+hatjk (D) hati+hatk

If the vectors hati-hatj, hatj+hatk and veca form a triangle then veca may be (A) -hati-hatk (B) hati-2hatj-hatk (C) 2hati+hatj+hatjk (D) hati+hatk