From 7b189275b2a6eea8eaa4db2adec662213534d7b5 Mon Sep 17 00:00:00 2001 From: Enrique Andrade Gonzalez Date: Thu, 16 Nov 2017 17:43:01 +0000 Subject: [PATCH] Actualizar 'Questions.txt' --- Questions.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Questions.txt b/Questions.txt index d621552..6beb1af 100644 --- a/Questions.txt +++ b/Questions.txt @@ -90,7 +90,10 @@ Esto es una ecuación derivadas + Solve equation \frac{d^2 u}{dx^2}-x\frac{du}{dx}+u=0 #08 - +Preguntar si: +(x, y) \ mapsto x ^ 2 + y ^ 2 +(x, y) \ mapsto x ^ 2-y ^ 2 + 2 x y ^ 2 + 1. +Son correctos #09