859. The diagram shows the graph x³ + y³ - 3xy = 0. You have figured out that it is also the graph of the parametric 3t² 3t equation P₁ = (₁ (143 1375), defined for all t-values ex- cept -1. Notice that t is the slope of the segment that joins (0,0) to Pt. Use these formulas to find the area enclosed by this loop. 7

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