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(Solved): Find equations of the tangent plane and normal line to the surface z-12=xe^(y)cosz at the point ...
Find equations of the tangent plane and normal line to the surface z-12=xe^(y)cosz at the point( -12,0,0 ).
Tangent Plane:(make the coefficient of z equal to 1 ).
=0.
Normal line:,
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,1: .