brummy309506
12.03.2020 •
Mathematics
Check that the point (-1, 1, 2) lies on the surface given below. cos(x + y) = exz + 2 (a) View the surface as a level surface for a function f(x,y,z). Find a vector normal to the surface at (-1, 1, 2).
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Ответ:
-1/3
Step-by-step explanation: