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## Homework Statement

f(x,y) = xy

x ≥ 0, y ≥ 0, [itex]x^{2}[/itex] + [itex]y^{2}[/itex] ≤ 4

## Homework Equations

## The Attempt at a Solution

[itex]f^{pi/2}_{0}[/itex][itex]f^{2secθ}_{0}[/itex] rcosθ * rsinθ * r drdθ

I just wanted to check... is this right?? because I really don't think it is