Find `veca.vecb` =

Find |veca-vecb| , if two vector veca and vecb are such that |veca|=4,|vecb|=5 and veca.vecb=3

Find |veca-vecb| , if two vectors veca and vecb are such that |veca|=2,|vecb|=3 and veca.vecb=4 .

Let veca and vecb be two vectors of the same magnitude such that the angle between them is 60^(@) and veca.vecb =8. Find |veca| and |vecb| .

If veca and vecb are two such that |veca|=5, |vecb|=4 and |veca.vecb|=10 , find the angle between veca and vecb and hence find |vecaxxvecb|

Find the angle between the vectors veca and vecb if |veca|=2|vecb|=3" and " veca.vecb=1 if veca=hati+hatj+hatk and vecb=hati-hatj-hatk .

If veca, vecb, vecc are vectors such that veca.vecb=0 and veca + vecb = vecc then:

If vecasxxvecb=0 and veca.vecb=0 then (A) veca_|_vecb (B) veca||vecb (C) veca=0 and vecb=0 (D) veca=0 or vecb=0

veca and vecb are two vectors such that |veca|=1 ,|vecb|=4 and veca. Vecb =2 . If vecc = (2vecaxx vecb) - 3vecb then find angle between vecb and vecc .

If |veca|=2, |vecb|=5 and |vecaxxvecb|=8 then find the value of veca.vecb

Find (veca+3vecb)*(2veca-vecb) . If veca=hati+hatj+2hatk, hatb=2hati+2hatj-hatk