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# Definite integrals properties review

Review the definite integral properties and use them to solve problems.

## What are the definite integral properties?

Sum/Difference: integral, start subscript, a, end subscript, start superscript, b, end superscript, open bracket, f, left parenthesis, x, right parenthesis, plus minus, g, left parenthesis, x, right parenthesis, close bracket, d, x, equals, integral, start subscript, a, end subscript, start superscript, b, end superscript, f, left parenthesis, x, right parenthesis, d, x, plus minus, integral, start subscript, a, end subscript, start superscript, b, end superscript, g, left parenthesis, x, right parenthesis, d, x
Constant multiple: integral, start subscript, a, end subscript, start superscript, b, end superscript, k, dot, f, left parenthesis, x, right parenthesis, d, x, equals, k, integral, start subscript, a, end subscript, start superscript, b, end superscript, f, left parenthesis, x, right parenthesis, d, x
Reverse interval: integral, start subscript, a, end subscript, start superscript, b, end superscript, f, left parenthesis, x, right parenthesis, d, x, equals, minus, integral, start subscript, b, end subscript, start superscript, a, end superscript, f, left parenthesis, x, right parenthesis, d, x
Zero-length interval: integral, start subscript, a, end subscript, start superscript, a, end superscript, f, left parenthesis, x, right parenthesis, d, x, equals, 0
Adding intervals: integral, start subscript, a, end subscript, start superscript, b, end superscript, f, left parenthesis, x, right parenthesis, d, x, plus, integral, start subscript, b, end subscript, start superscript, c, end superscript, f, left parenthesis, x, right parenthesis, d, x, equals, integral, start subscript, a, end subscript, start superscript, c, end superscript, f, left parenthesis, x, right parenthesis, d, x

## Practice set 1: Using the properties graphically

Problem 1.1
integral, start subscript, minus, 2, end subscript, start superscript, 0, end superscript, f, left parenthesis, x, right parenthesis, d, x, plus, integral, start subscript, 0, end subscript, cubed, f, left parenthesis, x, right parenthesis, d, x, equals
unitssquared

Want to try more problems like this? Check out this exercise.

## Practice set 2: Using the properties algebraically

Problem 2.1
integral, start subscript, minus, 1, end subscript, cubed, f, left parenthesis, x, right parenthesis, d, x, equals, minus, 2
integral, start subscript, minus, 1, end subscript, cubed, g, left parenthesis, x, right parenthesis, d, x, equals, 5
integral, start subscript, minus, 1, end subscript, cubed, left parenthesis, 3, f, left parenthesis, x, right parenthesis, minus, 2, g, left parenthesis, x, right parenthesis, right parenthesis, d, x, equals

Want to try more problems like this? Check out this exercise.