" (c) "x" agnitude of vector which comes on addition of two vectors,"6i+7j" and "3i+4j" is "

Magnitude of vector which comes on addition of two vectors, 6hati+7hatj and 3hati+4hatj is

The unit vector perpendicular to each of the vectors 2i - j + k and 3i + 4j - k is

A unit vector parallel to the sum of the vectors 2 i + 3j -k and 4i + 2j + k is

A unit vector perpendicular to each of the vector 3i+2j+4k and 2i+j-k is,

The unit vector which is orthogonal to the vector 5i+2j+6k and is coplanar with the vectors 2i+j+k" and "i-j+k is

The unit vector which is orthogonal to the vector 3vec i+2vec j+6vec k and is coplanar with the vector 2i+j+k and i-j+k