Pts Let f x, y = ln x - y 2 a Find the domain and range...

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1. [25pts] Let f ( x, y ) = ln( x - y 2 ) . (a) Find the domain and range of f ( x, y ) .
range of f ( x, y ) is the same as the range of ln( x ). That is: Range = { c R : -∞ < c < ∞} , i.e. the interval ( -∞ , ). (b) Determine the equations of the level curves f ( x, y ) = c to- gether with possible values of c.

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