Question: Consider the R2 R function dened by f(x,y) = 4x2y 7. Prove from rst principles that lim (x,y)(1,1) f(x,y) = 1.

Consider the R2 R function dened by f(x,y) = 4x2y 7. Prove from rst principles that lim (x,y)(1,1) f(x,y) = 1.

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