If the vectors i +j , i - j and li + mj + nk are coplanar, then:

If vectors i + j + k,i - j+k and 2i + 3j + mk are coplanar, then m =

If the vectors 2i - j + k, I + mj. I + j + k are coplannar then the value of m is

If vectors 2i - j + k, i + 2j - 3k and 3i + mj + 5k are coplanar, then m is a root of the equation

If the vectors 2i - 3j + 4k, I + 2j - k and xi - j + 2k are coplanar then x =

If the vectors 2i -- 3j + 4k, I + 2j - k, xi - j + 2k are coplanar then x = 8/5

If the vectors pi + j + k, i + qj + k and i + j + rk, where pneqnerne1 are coplanar, then : pqr- (p + q + r) =…..

If ai+j+k, i+bj+k and i+j+ck are coplanar, then

If the vectors i-j+k,2i+j-k,lambda i-j+lambda k are coplanar,then

If I + j + k, I - j, I + 2j + ak are coplanar then a is