Find the unit vector perpendicular to the surface x2 + y2 – z2 = 11 at the point (4, 2, 3).
1
8î + 4ĵ -6k̂
2
\(\frac{{4\widehat i + 2\widehat j - 3\widehat k}}{{\sqrt {29} }}\)
3
\(\frac{{8\widehat i +4\widehat j - 6\widehat k}}{{\sqrt {29} }}\)
4
\(\frac{{4\widehat i - 2\widehat j - 3\widehat k-11}}{{\sqrt {116} }}\)
5
Question Not Attempted