Find an equation of the tangent plane to the surface at the given point.\
$x^2 + y^2 - 8z^2 = 66$, $(-7, -5, 1)$
2. [-/1 Points]
DETAILS
LARCALCET7 13.8.506.XP.
Examine the function for relative extrema and saddle points. (If an answer does not exist, enter DNE.)
$f(x, y) = 8\sqrt{x^2 + y^2}$
relative minimum
$(x, y, z) = (
)
relative maximum
$(x, y, z) = (
)
saddle point
$(x, y, z) = (
)