And = 3i + j is such that a + b. If = 2i + 2 + 3k, b = -i + 2j + k If is perpendicular, find the value of 2.

If a = 2i - j + k, b = 3i + 4j - k then |a xx b| =

The value of a.b where a = 2i - 3j -k, b = 3i + 2j - 2k

If a = 2i + 5j + 6k, b = -2i + 3j + 2k then the magnitude of a - b is

If vec A=5i+7j-3k and vec B=2i+2j-ak are perpendicular vectors.The value of a is:

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

If a = i - j + 2k, b = 2i + 3j + k, c = i - k , then magnitude of a + 2b-3c is

If a = 3i - 2j + k, b = 2i - 4j - 3k, c = -i + 2j + 2k then a + b + c =