a,b,c are three vectors, such that `veca+vecb+vecc=0 , |veca|=1,|vecb|=2,|vecc|=3` , then `veca.vecb+vecb.vecc+vecc.veca`is equal to

If veca,vecb, vecc are three vectors such that veca + vecb +vecc =vec0, |veca| =1 |vecb| =2, | vecc| =3 , then veca.vecb + vecb .vecc + vecc.veca is equal to

If veca,vecb, vecc are three vectors such that veca + vecb +vecc =vec0, |veca| =1 |vecb| =2, | vecc| =3 , then veca.vecb + vecb .vecc +vecc + vecc.veca is equal to

If veca,vecb,vecc are three vectors such that veca+vecb+vecc=vec0 and |veca|=2,|vecb|=3,|vecc|=5 the value of veca.vecb+vecb.vecc+vecc.veca is

veca,vecb,vecc be three vectors such that veca+vecb+vecc=0" and "|veca|=1,|vecb|=4,|vecc|=2 . Evalute veca*vecb+vecb*vecc+vecc*veca .

If veca,vecb, vecc are three vectors such that |veca |= 5, |vecb| = 12 and | vecc|=13 and veca+vecb+vecc=0 then veca.vecb+vecb.vecc+vecc.veca is equal to

If veca,vecb,vecc are three unit vectors such that veca+vecb+vecc=0, then veca.vecb+vecb.vecc+vecc.veca is equal to (A) -1 (B) 3 (C) 0 (D) -3/2

If veca,vecb,vecc are three unit vectors such that veca+vecb+vecc=0, then veca.vecb+vecb.vecc+vecc.veca is equal to (A) -1 (B) 3 (C) 0 (D) -3/2

If the three vectors veca,vecb,vecc are such that veca+vecb+vecc=vec0" and " |veca|=3,|vecb|=4,|vecc|=5 , then show that veca*vecb+vecb*vecc+vecc*veca=-25 .