From 30f8600077de168a564eb5d8f49878a4876f40f6 Mon Sep 17 00:00:00 2001 From: Chrissy Date: Sun, 12 Jul 2026 22:20:23 -0400 Subject: [PATCH] Fix typo in sec-trig-right.xml --- source/sec-trig-right.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/sec-trig-right.xml b/source/sec-trig-right.xml index 745176d0..8c4c7af7 100755 --- a/source/sec-trig-right.xml +++ b/source/sec-trig-right.xml @@ -94,7 +94,7 @@

The situation is especially nice for right triangles, because then we only have five unknown features since one of the angles is \frac{\pi}{2} radians (or 90^\circ), as demonstrated in Figure. If we know one of the two non-right angles, - then we know the other as well. Moreover, if we know any two sides, we can immediately deduce the third, because of the Pythagorean Theorem. As we saw in Preview Activity, the cosine and sine functions offer additional help in determining missing information in right triangles. Indeed, while the functions \cos(t) and \sin(t) have many important applications in modeling periodic phenomena such as osciallating masses on springs, they also find powerful application in settings involving right triangles, such as in navigation and surveying. + then we know the other as well. Moreover, if we know any two sides, we can immediately deduce the third, because of the Pythagorean Theorem. As we saw in Preview Activity, the cosine and sine functions offer additional help in determining missing information in right triangles. Indeed, while the functions \cos(t) and \sin(t) have many important applications in modeling periodic phenomena such as oscillating masses on springs, they also find powerful application in settings involving right triangles, such as in navigation and surveying.