From 93c6ae687abfbe40cb1c132702c33b00f493b114 Mon Sep 17 00:00:00 2001 From: eggy Date: Sun, 2 Oct 2022 23:13:43 -0400 Subject: [PATCH] math117: add tan table --- docs/ce1/math117.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/docs/ce1/math117.md b/docs/ce1/math117.md index 7b136a2..796bc8e 100644 --- a/docs/ce1/math117.md +++ b/docs/ce1/math117.md @@ -209,10 +209,11 @@ $$\theta=\frac{s}{r}$$ The following table indicates the special angles that should be memorised: -| Angle (rad) | $\frac{\pi}{6}$ | $\frac{\pi}{4}$ | $\frac{\pi}{3}$ | $\frac{\pi}{2}$ | 1 | -| --- | --- | --- | --- | --- | --- | -| cos | 1 | $\frac{\sqrt{3}}{2}$ | $\frac{\sqrt{2}}{2}$ | $\frac{1}{2}$ | 0 | -| sin | 0 | $\frac{1}{2}$ | $\frac{\sqrt{2}}{2}$ | $\frac{\sqrt{3}}{2}$ | 1 | +| Angle (rad) | 0 | $\frac{\pi}{6}$ | $\frac{\pi}{4}$ | $\frac{\pi}{3}$ | $\frac{\pi}{2}$ | $\pi$ | +| --- | --- | --- | --- | --- | --- | --- | +| cos | 1 | $\frac{\sqrt{3}}{2}$ | $\frac{\sqrt{2}}{2}$ | $\frac{1}{2}$ | 0 | -1 | +| sin | 0 | $\frac{1}{2}$ | $\frac{\sqrt{2}}{2}$ | $\frac{\sqrt{3}}{2}$ | 1 | 0 | +| tan | 0 | $\frac{\sqrt{3}}{3}$ | 1 | $\sqrt{3}$ | not allowed | 0 | ### Identities