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## Main Question or Discussion Point

I'm just doing some geometry and I can't remember how to find the maximum values of two variables in the same equation. Like, if you differentiate the equation partially for one, then again from the begining partially for the other and add them together or something.

The equation is something like (where C and K are constants)

[Y*cos(30) +(K^2 + (X/2)^2)^0.5] / cos(30) = C

It's been a long time since I did something like this, though simple it may be, I vaguly remember doing something similar for the maximum size of a rectangle or something.

Thanks

The equation is something like (where C and K are constants)

[Y*cos(30) +(K^2 + (X/2)^2)^0.5] / cos(30) = C

It's been a long time since I did something like this, though simple it may be, I vaguly remember doing something similar for the maximum size of a rectangle or something.

Thanks