Pyramid 1101
Preview $$U_{1101}(x, y) = \frac{\left(- 2 x - \sqrt{1 - 4 x} + 1\right)^{3} \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}{64 x^{6} y^{6}}$$
Pyramid 1102
Preview $$U_{1102}(x, y) = \frac{x}{\left(1 - y\right)^{3}} + 1$$
Pyramid 1103
Preview $$U_{1103}(x, y) = \frac{x \left(1 - \sqrt{1 - 4 y}\right)^{3}}{8 y^{3}} + 1$$
Pyramid 1104
Preview $$U_{1104}(x, y) = \frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{2}}{4 y^{4}} + 1$$
Pyramid 1105
Preview $$U_{1105}(x, y) = \frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}{8 y^{6}} + 1$$
Pyramid 1106
Preview $$U_{1106}(x, y) = \left(x \left(y + 1\right) + 1\right)^{2}$$
Pyramid 1107
Preview $$U_{1107}(x, y) = \left(x \left(y + 1\right)^{2} + 1\right)^{2}$$
Pyramid 1108
Preview $$U_{1108}(x, y) = \left(x \left(y + 1\right)^{3} + 1\right)^{2}$$
Pyramid 1109
Preview $$U_{1109}(x, y) = \left(\frac{x}{1 - y} + 1\right)^{2}$$
Pyramid 1110
Preview $$U_{1110}(x, y) = \left(\frac{x}{\left(1 - y\right)^{2}} + 1\right)^{2}$$
Pyramid 1111
Preview $$U_{1111}(x, y) = \left(\frac{x}{\left(1 - y\right)^{3}} + 1\right)^{2}$$
Pyramid 1112
Preview $$U_{1112}(x, y) = \left(\frac{x \left(1 - \sqrt{1 - 4 y}\right)}{2 y} + 1\right)^{2}$$
Pyramid 1113
Preview $$U_{1113}(x, y) = \left(\frac{x \left(1 - \sqrt{1 - 4 y}\right)^{2}}{4 y^{2}} + 1\right)^{2}$$
Pyramid 1114
Preview $$U_{1114}(x, y) = \left(\frac{x \left(1 - \sqrt{1 - 4 y}\right)^{3}}{8 y^{3}} + 1\right)^{2}$$
Pyramid 1115
Preview $$U_{1115}(x, y) = 2 x \left(y + 1\right)^{5} + \left(y + 1\right)^{2} \sqrt{4 x^{2} \left(y + 1\right)^{6} + 1}$$
Pyramid 1116
Preview $$U_{1116}(x, y) = \left(\frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{2}}{4 y^{4}} + 1\right)^{2}$$
Pyramid 1117
Preview $$U_{1117}(x, y) = \left(\frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}{8 y^{6}} + 1\right)^{2}$$
Pyramid 1118
Preview $$U_{1118}(x, y) = \left(x \left(y + 1\right) + 1\right)^{3}$$
Pyramid 1119
Preview $$U_{1119}(x, y) = \left(x \left(y + 1\right)^{2} + 1\right)^{3}$$
Pyramid 1120
Preview $$U_{1120}(x, y) = \left(x \left(y + 1\right)^{3} + 1\right)^{3}$$
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