What do the level surfaces of f(x, y, z) = x2 y2 + z2look like [Hint: Use cross-sections
Chapter 12, Problem 33(choose chapter or problem)
What do the level surfaces of f(x, y, z) = x2 y2 + z2look like? [Hint: Use cross-sections with y constant insteadof cross-sections with z constant.]
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