i am so fucking frustrated.

[wickedcherub]

I can't even do question 1 of my latest maths assignment AND IT LOOKS SO FUCKING EASY.

FIND THE LOCAL MAXIMUM AND MINIMUM POINTS OF THE FUNCTION:

f(x,y) = x² + y² + 1/(x²y²)


WHY I CAN'T I DO IT. WHYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY.

I have half a page of workings that go nowhere.

I WANT TO GO ALL BANKAI ON ITS ASS.

Comments

[seshat1.livejournal.com]

I know I know how to do this. I looked at the wiki page to jog my memory which helped. But am unsure if you need to diff wrt x, y or both.

wrt x the function becomes
df/dx= 2x - 2y^-2x^-3
if that helps. Probably not! :D