Pyramid 701
Preview $$U_{701}(x, y) = \frac{1}{- \frac{x \left(1 - \sqrt{1 - 4 y}\right)}{2 y} + 1}$$
Pyramid 702
Preview $$U_{702}(x, y) = \frac{1}{- \frac{x}{\sqrt{1 - 4 y}} + 1}$$
Pyramid 703
Preview $$U_{703}(x, y) = \sqrt{4 x + 1} \left(y + 1\right)$$
Pyramid 704
Preview $$U_{704}(x, y) = - \frac{\sqrt{4 x + 1}}{y \sqrt{4 x + 1} - 1}$$
Pyramid 705
Preview $$U_{705}(x, y) = \frac{1 - \sqrt{y \left(- 16 x - 4\right) + 1}}{2 y \sqrt{4 x + 1}}$$
Pyramid 706
Preview $$U_{706}(x, y) = \sqrt{4 x + 1} \left(y + 1\right)^{2}$$
Pyramid 707
Preview $$U_{707}(x, y) = \frac{- 2 y \sqrt{4 x + 1} - \sqrt{- 4 y \sqrt{4 x + 1} + 1} + 1}{2 y^{2} \sqrt{4 x + 1}}$$
Pyramid 708
Preview $$U_{708}(x, y) = \frac{\sqrt{4 x + 1}}{\left(1 - y\right)^{2}}$$
Pyramid 709
Preview $$U_{709}(x, y) = x \sqrt{4 y + 1} + 1$$
Pyramid 710
Preview $$U_{710}(x, y) = 2 x y^{2} + 4 x y + 2 x + \left(y + 1\right) \sqrt{4 x^{2} y^{2} + 8 x^{2} y + 4 x^{2} + 1}$$
Pyramid 711
Preview $$U_{711}(x, y) = 2 x^{2} y + x \sqrt{4 x^{2} y^{2} + 4 y + 1} + 1$$
Pyramid 712
Preview $$U_{712}(x, y) = x \left(4 y + 1\right) + \sqrt{4 y + 1}$$
Pyramid 713
Preview $$U_{713}(x, y) = \frac{1 - \sqrt{- 4 x \sqrt{4 y + 1} + 1}}{2 x \sqrt{4 y + 1}}$$
Pyramid 714
Preview $$U_{714}(x, y) = \frac{- 2 x \sqrt{4 y + 1} - \sqrt{- 4 x \sqrt{4 y + 1} + 1} + 1}{2 x^{2} \left(4 y + 1\right)}$$
Pyramid 715
Preview $$U_{715}(x, y) = \frac{\sqrt{4 x \sqrt{4 y + 1} + 1}}{2} + \frac{1}{2}$$
Pyramid 716
Preview $$U_{716}(x, y) = \sqrt{\frac{4 x + 1}{1 - 4 y}}$$
Pyramid 717
Preview $$U_{717}(x, y) = - \frac{\sqrt{4 y + 1}}{x \left(4 y + 1\right) - 1}$$
Pyramid 718
Preview $$U_{718}(x, y) = \frac{1 - \sqrt{- 4 x \left(4 y + 1\right)^{\frac{3}{2}} + 1}}{2 x \left(4 y + 1\right)}$$
Pyramid 719
Preview $$U_{719}(x, y) = \frac{\sqrt{4 y + 1}}{2} + \frac{\sqrt{4 x \left(4 y + 1\right)^{\frac{3}{2}} + 4 y + 1}}{2}$$
Pyramid 720
Preview $$U_{720}(x, y) = x \left(4 y + 1\right)^{\frac{3}{2}} + \sqrt{4 y + 1}$$
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