If `veca*hati=4,` then the value of `veca*{hatjxx(2hatj-3hatk)}` is equal to

If veca=2hati+2hatj+3hatk and vecb=2hati-hatj+hatk , then the value of (veca+vecb).(veca-vecb) 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

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 and vecb are vectors such that |veca+ecb|=sqrt(29) and veca xx (2hati+3hatj+4hatk)=(2hati+3hatj+4hatk) xxvecb, then possible value of (veca+vecb).(-7hati+2hatj+3hatk) is (A) 0 (B) 3 (C) 4 (D) 8

If veca and vecb are vectors such that |veca+vecb|=sqrt(29) and veca xx (2hati+3hatj+4hatk)=(2hati+3hatj+4hatk) xxvecb, then possible value of (veca+vecb).(-7hati+2hatj+3hatk) is (A) 0 (B) 3 (C) 4 (D) 8

If veca and vecb are vectors such that |veca+vecb|=sqrt(29) and veca xx (2hati+3hatj+4hatk)=(2hati+3hatj+4hatk) xxvecb, then possible value of (veca+vecb).(-7hati+2hatj+3hatk) is (A) 0 (B) 3 (C) 4 (D) 8

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

Let veca=2hati+3hatj+4hatk, vecb=hati-2hatj+hatk and vecc=hati+hatj-hatk. If vecr xx veca =vecb and vecr.vec c=3, then the value of |vecr| is equal to

Let veca=2hati+3hatj+4hatk, vecb=hati-2hatj+jhatk and vecc=hati+hatj-hatk. If vecr xx veca =vecb and vecr.vec c=3, then the value of |vecr| is equal to