मान लीजिए कि `bar(a)=hati-hatj,bar(b)=3hatj-hatk` और `bar(c)=7hati-hatk`. एक ऐसा सदिश ज्ञात कीजिए जो `bar(a)` और `bar(b)` दोनों पर लम्ब है और `bar(c)cdot bar(d)=1`.

IF bar a = hati + hatj +2 hatk , bar b = 2 hati - hatj +hatk and bar c = 3 hati - hatk and bar c = m bara + n barb then m+ n =

The projection of bar(A) = 2hati +2hatj +5hatk on to bar(B) = hati -hatj is:

The projection of bar(A) = 2hati +2hatj +5hatk on to bar(B) = hati -hatj is:

If bar(a)=hati+hatj+hatk,bar(b)=hati+hatj,bar( c )=hati and (bar(a)xx bar(b))xx bar( c )=lambda bar(a)+mu bar(b) then lambda+mu = …………

bar(a)=hati+hatj+hatk,bar(b)=hati+3hatj+5hatk and bar( c )=7hati+9hatj+11hatk are vectors. The area of the parallelogram whose diagonals are bar(a)+bar(b) and bar(b)+bar( c ) is …………..

Vector bar(a)=6hati-3hatj,bar(b)=2hati-6hatj and bar( c )=-2hati+21hatj are such that bar(alpha)=bar(a)+bar(b)+bar( c ) . The vector bar(alpha) is represented as …………….. A component of bar(a) and bar(b) .

If bar(a)=hati+hatj+2hatk and bar(b)=2hati+hatj-2hatk , find the unit vector in the direction of (i) 6bar(b)" " (ii) 2bar(a)-bar(b)

[bar(a)xx bar(b)" "bar(a)xx bar( c )" "bar(d)] = …………….