Toronto Math Forum

MAT334-2018F => MAT334--Lectures & Home Assignments => Topic started by: Ende Jin on November 27, 2018, 12:05:43 PM

Title: 3.2 Q1?
Post by: Ende Jin on November 27, 2018, 12:05:43 PM

There is no example in the book.
The only way I know is to translate it into multivariable calculus and use Lagrange multiplier. However, is there an easier way?

Title: Re: 3.2 Q1?
Post by: Ende Jin on November 27, 2018, 01:50:40 PM

Never mind, I figured out that I can just specifically analyze.
In Q1, I just draw a graph to see that $|z+2|$ can be at most 3 while the numerator is always 1.