If ` vec a , vec b ,a n d vec c` are unit vectors such that ` vec a+ vec b+ vec c=0,` then find the value of `veca*vecb+vecb*vecc+vecc*veca`

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

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 bdot c+vec *vec a

if veca , vecb ,vecc are three vectors such that veca +vecb + vecc = vec0 then

If vec a,vec b , vec c are unit vectors such that veca + vec b+ vecc = 0 and lambda = veca.vecb + vecb.vecc+vecc.veca and d = veca xx vecb + vecb xx vecc + vecc xx veca , then (lambda,vecd) is

If |veca| = 1, |vec b| = 2, |vec c| = 3 and vec a +vec b +vec c = 0 , then the value of vec a * vec b +vec b. vec c +vec c* vec a equals

If veca , vecb ,vec c are the 3 vectors such that |veca| = 3, |vecb| = 4,|vec c| = 5, |veca + vecb + vec c | = 0 then the value of veca.vecb + vecb.vec c + vec c .vec a is :

Let veca vecb and vecc be three non-zero vectors such that veca + vecb + vecc = vec0 and lambda vecb xx veca xx veca + vecbxxvecc + vecc + veca = vec0 then find the value of lambda .

If veca, vecb, vecc are three vectors such that veca + vecb+ vecc =0 and |veca| =5, |vecb|=12.|vecc|=13, then find vecavecb+vecb vec c + vec c veca

If |veca|=3, |vecb|=1, |vecc|=4 and veca + vecb + vecc= vec0 , find the value of veca.vecb+ vecb+ vecc.vecc + vecc.veca .