math: fix solid revolution formula

2021-02-22 14:37:18 -05:00 · 2021-02-22 14:37:18 -05:00 · a008029e1d
commit a008029e1d
parent 17635d575d
1 changed files with 1 additions and 1 deletions
--- a/docs/mcv4u7.md
+++ b/docs/mcv4u7.md
@ -126,7 +126,7 @@ Shapes formed by rotating a line or curve about a fixed axis, such as cones, sph
 $$
 \begin{align*}
 V&=\lim_{x\to 0}\sum^b_{x=a}\pi y^2 dx \\
-&=\int^b_a y^2 dx
+&=\pi\int^b_a y^2 dx
 \end{align*}
 $$