Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^2 y^2 + x = y$$ $\dfrac{2xy^2 + 1}{1 - 2x^2 y}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^3 + 3x^2 y + y^3 = 5$$ $-\dfrac{x^2 + 2xy}{x^2 + y^2}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$(x + y)^3 = x^2$$ $\dfrac{2x - 3(x+y)^2}{3(x+y)^2}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^2 - 3xy + 2y^2 = 4$$ $\dfrac{3y - 2x}{4y - 3x}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$xy^2 - x^2 y = 2$$ $\dfrac{2xy - y^2}{2xy - x^2}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$\sqrt{x} + \sqrt{y} = 4$$ $-\sqrt{\dfrac{y}{x}}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$y^3 - 3xy = 2$$ $\dfrac{y}{y^2 - x}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^3 + y^3 = 9xy$$ $\dfrac{3y - x^2}{y^2 - 3x}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^2 y + xy^2 = 6$$ $-\dfrac{2xy + y^2}{x^2 + 2xy}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^3 - xy + y^3 = 0$$ $\dfrac{y - 3x^2}{3y^2 - x}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$y = (x + y)^3$$ $\dfrac{3(x+y)^2}{1 - 3(x+y)^2}$
Find $\dfrac{\mathrm{d}y}{\mathrm{d}x}$ given that $$x^2 + 2xy - y^2 = 4$$ $\dfrac{x+y}{y-x}$
Find the coordinates of the points on the curve $$x^2 + y^2 = 25$$ where the tangent is parallel to the $x$-axis. $(0, 5)$ and $(0, -5)$
Find the coordinates of the points on the curve $$x^2 + y^2 = 25$$ where the tangent is parallel to the $y$-axis. $(5, 0)$ and $(-5, 0)$
Find the coordinates of the points on the curve $$4x^2 + 9y^2 = 36$$ where the tangent is parallel to the $x$-axis. $(0, 2)$ and $(0, -2)$
Find the coordinates of the points on the curve $$4x^2 + 9y^2 = 36$$ where the tangent is parallel to the $y$-axis. $(3, 0)$ and $(-3, 0)$
Find the coordinates of the points on the curve $$x^2 + xy + y^2 = 12$$ where the tangent is parallel to the $x$-axis. $(2, -4)$ and $(-2, 4)$
Find the coordinates of the points on the curve $$x^2 + xy + y^2 = 12$$ where the tangent is parallel to the $y$-axis. $(-4, 2)$ and $(4, -2)$
Find the coordinates of the points on the curve $$x^2 - xy + y^2 = 3$$ where the tangent is parallel to the $x$-axis. $(1, 2)$ and $(-1, -2)$
Find the coordinates of the points on the curve $$x^2 - xy + y^2 = 3$$ where the normal is parallel to the $x$-axis. $(2, 1)$ and $(-2, -1)$
Find the coordinates of the points on the curve $$x^2 + y^2 = 36$$ where the normal is parallel to the $y$-axis. $(0, 6)$ and $(0, -6)$
Find the coordinates of the points on the curve $$x^2 + 4y^2 = 4$$ where the normal is parallel to the $x$-axis. $(2, 0)$ and $(-2, 0)$
Find the coordinates of the points on the curve $$y^2 = x^3 - 12x$$ where the tangent is parallel to the $x$-axis. $(-2, 4)$ and $(-2, -4)$
Find the coordinates of the points on the curve $$x^2 - y^2 = 16$$ where the tangent is parallel to the $y$-axis. $(4, 0)$ and $(-4, 0)$
Find the equation of the tangent to the curve $$x^2 + xy + y^2 = 7$$ at the point $(1, 2)$. $4x + 5y = 14$
Find the equation of the normal to the curve $$x^2 - y^2 = 9$$ at the point $(5, 4)$. $4x + 5y = 40$
Find the equation of the normal to the curve $$x^2 + y^2 = 25$$ at the point $(3, 4)$. $y = \dfrac{4}{3}x$
Find the equation of the tangent to the curve $$y^2 = x^3$$ at the point $(1, 1)$. $3x - 2y = 1$
Find the equation of the tangent to the curve $$x^3 + y^3 = 9xy$$ at the point $(2, 4)$. $5y = 4x + 12$
Find the equation of the normal to the curve $$xy = 8$$ at the point $(2, 4)$. $2y = x + 6$