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ktobrien
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Homework Statement
Find equations of the following.
x2-2y2+z2+yz=7, (5,3,-3)
(a) the tangent plane
(b) the normal line to the given surface at the point
Homework Equations
I know it involves fx, fy, fz
The Attempt at a Solution
I got 10x-15y-3z=7. Is this correct? Because its not true at the point (5,3,-3).
I got it by f(5,3,-3)+fx(5,3,-3)(x-5)+fy(5,3,-3)(y-3)+fz(5,3,-3)(z+3)
As for the normal line I know the answers are
x=10t+5
y=-15+3
z=-3-3
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