From 9cac4a5f7f8c382ddc4a3b01933cc40732c2cdf8 Mon Sep 17 00:00:00 2001 From: craisin Date: Wed, 4 Feb 2026 11:12:42 -0800 Subject: [PATCH] fix? --- sin x = 2.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sin x = 2.md b/sin x = 2.md index 03be7d0..1b193b4 100644 --- a/sin x = 2.md +++ b/sin x = 2.md @@ -19,7 +19,7 @@ $$ u - u^{-1} = 4i $$ $$ -u^2 - 1 = 4iu $$ +u^2 - 1 = 4iu $$ u^2 - 4iu - 1 = 0 $$ @@ -27,13 +27,13 @@ $$ u^2 - 4iu - 4 = -3 $$ $$ -(u - 2i)^2 = -3 \\ +(u - 2i)^2 = -3 $$ $$ u - 2i = \pm \sqrt {-3} $$ $$ -u = 2i \pm \sqrt {-3} \\ +u = 2i \pm \sqrt {-3} $$ $$ u = i(2 \pm \sqrt 3)