[" 4a "2i+2j+3k,b=-i+2j+k" and "c=3i+j" are "],[" uch that "a+Mb" .is perpendicular to "c" ,then find "],[" the value of "M]

if vec a=2i+2j+3k,vec b=-i+2j+k and vcec=3i+j are such that vec a+lambdavec b is perpendicular vec c then find the value of lambda

Given a=i+j-k, b=-i+2j+k" and "c=-i+2j-k . A unit vector perpendicular to both a + b and b + c is

If a=3i+2j+k, b=5i-j+2k" and "c=i+j+k , find [a b c]