diff --git a/education/math/MATH1210 (calc 1)/Integrals.md b/education/math/MATH1210 (calc 1)/Integrals.md
index 1640c29..d799470 100644
--- a/education/math/MATH1210 (calc 1)/Integrals.md	
+++ b/education/math/MATH1210 (calc 1)/Integrals.md	
@@ -213,4 +213,4 @@ $$ \lim_{n \to \infty} \sum_{i = 1}^n (f(x_i)-g(x_i)\cdot \Delta x)$$
 - $\Delta x$ is the width of each sub-interval.
 
 This sum can also be described as:
-$$ = \int_a^b $$
\ No newline at end of file
+$$ = \int_a^b(f(x)-g(x))dx $$
\ No newline at end of file