Three vectors `veca,vecb,vecc` are such that `vecaxxvecb= 3(vecaxxvecc)`Also`|veca|=|vecb|=1, |vecc|=1/3` If the angle between `vecb` and `vecc` is `60^@` then

Three vectors veca,vecb,vecc are such that veca xx vecb=4(veca xx vecc) and |veca|=|vecb|=1 and |vecc|=1/4 . If the angle between vecb and vecc is pi/3 then vecb is

Three vectors veca,vecb,vecc are such that veca xx vecb=4(veca xx vecc) and |veca|=|vecb|=1 and |vecc|=1/4 . If the angle between vecb and vecc is pi/3 then vecb is

Three vectors veca,vecb,vecc are such that veca xx vecb=4(veca xx vecc) and |veca|=|vecb|= and |vecc|=1/4 . If the angle between vecb and vecc is pi/3 then vecb is

Vectors veca,vecb, vecc are such that veca + vecb + vecc = 0 and |veca| = 3, |vecb| = 5 and |vecc]= 7 . Find the angle between veca and vecb .

Three vectors veca,vecb and vecc are such that |veca|=2,|vecb|=3,|vecc|=4 and veca+vecb+vecc=0 find 4veca*vecb+3vecb*vecc+3vecc*veca .

Let veca,vecb,vecc be three vectors such that veca+vecb+vecc=vec0 and abs(veca)=3,abs(vecb)=5,abs(vecc)=7 . Then prove that the angle between veca and vecb is 60^@ .

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

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 .

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