The function is
If f is defined at x = a, then the we define
(Properties of definite integrals:)
Therefore .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
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![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=75720e96c8a2509f6a835dba11c970cb.png\")
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(Properties of definite integrals:) ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
.