Let ` vec u , vec v` and ` vec w` be vector such ` vec u+ vec v+ vec w= vec0` . If `| vec u|=3,| vec v|=4` and `| vec w|=5,` then find ` vec u . vec v+ vec v . vec w+ vec w . vec u` .

Let vec u ,\ vec v\ a n d\ vec w be vector such vec u+ vec v+ vec w=0.\ if | vec u|=3,\ | vec v|=4\ a n d\ | vec w|=5, then find vec udot vec vdot+ vec vdot vec w+ vec wdot vec udot

Let vec u , vec va n d vec w be vectors such that vec u+ vec v+ vec w=0. If | vec u|=3,| vec v|=4a n d| vec w|=5, then vec udot vec v+ vec vdot vec w+ vec wdot vec u is 47 b. -25 c. 0 d. 25

Let vec a , vec b , vec c are three vectors , such that vec a + vec b + vec c = vec 0 .If , |vec a|=3 , |vec b|=4 and | vec c|=5 , then the value of, |vec a+vec b|^(2) + |vec b-vec c|^(2) + |vec c+vec a|^(2) , equal to :

vec u = vec a-vec b, vec v = vec a + vec b and | vec a | = | vec b | = 2 then | vec u xxvec v | is equal to

If vec a, vec b, vec c are unit vectors such that vec a + vec b + vec c = vec 0 find the value of vec a * vec b + vec b * vec c + vec c * vec avec a * vec b + vec b * vec c + vec c * vec a

Let vec u and vec v be unit vectors such that vec u xxvec v+vec u=vec w and vec w xxvec u=vec v. Find the value of [vec uvec vvec w]

If vec a,vec b,vec c are three vectors such that vec a+vec b+vec c=vec 0 and |vec a|=3,|b|=4,|vec c|=5 Find the value of vec a*vec b+vec b*vec c+vec c*vec a

If? B, c are three vectors such that | vec a | = 5, | vec b | = 12 and | vec c | = 13 and vec a + vec b + vec c = 0 then vec a * vec b + vec b * vec c + vec c * vec a

vec a+vec b+vec c=vec 0,vec |a|=3,|vec b|=5 and |vec c|=7 find the anglebetweeen vec a and vec b