Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Vector Algebra Scalar and Vector Product
If two vectors \(\rm \vec{a}\ and\ \vec{b}\) are such that \(\rm |\vec{a}| =2,\ |\vec{b}|=3\ and \ \vec{a}.\vec{b}=4\), then \( |\vec{a}-2\vec{b}|\) is equal to
1
√2
2
2√6
3
24
4
More than one of the above
5
None of the above