Prove that (x + y)/(x 2 + 2y 2 + 6) has a maximum at (2, 1)

Question:

Prove that (x + y)/(x2 + 2y2 + 6) has a maximum at (2, 1) and a minimum at (–2, –1).

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: