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Pyramid 1481
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$$U_{1481}(x, y) = \frac{\frac{x}{\sqrt{1 - 4 y}} + 1}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1482
Preview
$$U_{1482}(x, y) = \frac{\frac{x}{1 - 4 y} + 1}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1483
Preview
$$U_{1483}(x, y) = \frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1$$
Pyramid 1484
Preview
$$U_{1484}(x, y) = \frac{\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1}{\sqrt{1 - 4 y}}$$
Pyramid 1485
Preview
$$U_{1485}(x, y) = \frac{\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1}{1 - 4 y}$$
Pyramid 1486
Preview
$$U_{1486}(x, y) = \frac{\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1487
Preview
$$U_{1487}(x, y) = \left(\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1\right)^{2}$$
Pyramid 1488
Preview
$$U_{1488}(x, y) = \frac{\left(\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1\right)^{2}}{\sqrt{1 - 4 y}}$$
Pyramid 1489
Preview
$$U_{1489}(x, y) = \frac{\left(\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1\right)^{2}}{1 - 4 y}$$
Pyramid 1490
Preview
$$U_{1490}(x, y) = \frac{\left(\frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1\right)^{2}}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1491
Preview
$$U_{1491}(x, y) = \frac{\left(x + 1\right)^{2}}{\sqrt{1 - 4 y}}$$
Pyramid 1492
Preview
$$U_{1492}(x, y) = \frac{\left(x + 1\right)^{2}}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1493
Preview
$$U_{1493}(x, y) = \frac{\left(\frac{x}{\sqrt{1 - 4 y}} + 1\right)^{2}}{1 - 4 y}$$
Pyramid 1494
Preview
$$U_{1494}(x, y) = \frac{\left(\frac{x}{\sqrt{1 - 4 y}} + 1\right)^{2}}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1495
Preview
$$U_{1495}(x, y) = \frac{\left(\frac{x}{1 - 4 y} + 1\right)^{2}}{\sqrt{1 - 4 y}}$$
Pyramid 1496
Preview
$$U_{1496}(x, y) = \frac{\left(\frac{x}{1 - 4 y} + 1\right)^{2}}{\left(1 - 4 y\right)^{\frac{3}{2}}}$$
Pyramid 1497
Preview
$$U_{1497}(x, y) = \frac{1}{\left(1 - 4 y\right) \left(- \frac{x}{\sqrt{1 - 4 y}} + 1\right)}$$
Pyramid 1498
Preview
$$U_{1498}(x, y) = \frac{1}{\left(1 - 4 y\right)^{\frac{3}{2}} \left(- \frac{x}{\sqrt{1 - 4 y}} + 1\right)}$$
Pyramid 1499
Preview
$$U_{1499}(x, y) = \frac{1}{\left(1 - 4 y\right)^{\frac{3}{2}} \left(- \frac{x}{1 - 4 y} + 1\right)}$$
Pyramid 1500
Preview
$$U_{1500}(x, y) = \frac{1}{- \frac{x}{\left(1 - 4 y\right)^{\frac{3}{2}}} + 1}$$
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