diff --git a/education/math/MATH1210 (calc 1)/Integrals.md b/education/math/MATH1210 (calc 1)/Integrals.md index d799470..4187515 100644 --- a/education/math/MATH1210 (calc 1)/Integrals.md +++ b/education/math/MATH1210 (calc 1)/Integrals.md @@ -213,4 +213,6 @@ $$ \lim_{n \to \infty} \sum_{i = 1}^n (f(x_i)-g(x_i)\cdot \Delta x)$$ - $\Delta x$ is the width of each sub-interval. This sum can also be described as: -$$ = \int_a^b(f(x)-g(x))dx $$ \ No newline at end of file +$$ = \int_a^b(f(x)-g(x))dx $$ + +Where the two lines intersect each other, you'll need to split the solution into a sum of integrals to ensure that $f(x) \ge g(x)$, by swapping the two. \ No newline at end of file