Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Vector Algebra Scalar and Vector Product
If a be any vector, then |a × î|2 + |a × j|2 + |a × k̂|2 is equal to
1
a2
2
2a2
3
3a2
4
More than one of the above
5
None of the above