diff --git a/lecture-07/homework.md b/lecture-07/homework.md
index 205d8c4..bdc58c8 100644
--- a/lecture-07/homework.md
+++ b/lecture-07/homework.md
@@ -17,6 +17,6 @@ criar uma tabela sobre as suas diferenças e semelhanças.
 |:---------------------|:--------------------------------------------------------------------------------------------------------------------|:------------------------------------------------------|
 | Ondas sem rotação    | $\frac{\partial^2\eta}{\partial x^2} - \frac{1}{gh}\frac{\partial^2\eta}{\partial{t^2}} = 0$                        | $\omega = k\sqrt{gh}$                                 |
 | Ondas de Kelvin      | $\frac{\partial^2\eta}{\partial y^2} - \frac{1}{gh}\frac{\partial^2\eta}{\partial{t^2}} = 0$                        | $\omega = -l\sqrt{gh}$                                |
-|                      | $fv = g\frac{\partial{\eta}}{\partial x}$                                                                           |                                                       |
-| Ondas de Poincaré    | $\frac{\partial^2\eta}{\partial x^2} - \frac{1}{gh}\frac{\partial^2\eta}{\partial t^2} = f^2\eta$                   | $\omega = f + k\sqrt{gh}$                             |
+|                      | $f_ov = g\frac{\partial{\eta}}{\partial x}$                                                                         |                                                       |
+| Ondas de Poincaré    | $\frac{\partial^2\eta}{\partial x^2} - \frac{1}{gh}\frac{\partial^2\eta}{\partial t^2} = f_o^2\eta$                 | $\omega = f_o + k\sqrt{gh}$                           |
 | Ondas de Rossby      | $\frac{\partial{}}{\partial t} \nabla^2 \eta - \frac{f_o^2}{gh} \eta + \beta \frac{\partial{\eta}}{\partial x} = 0$ | $\omega = \frac{-\beta k}{k^2 + l^2 + \frac{1}{R^2}}$ |