411 REFERENCE · Wikibooks
High School Calculus/Definite Integrals
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A definite integral can also be defined as
The Area Under the Curve
The area under the curve is found by finding [a,b]
where [a,b] are points on the x axis
[a,b] are the points on which you want to find the area
This can be denoted by
This is denoted by