What is the definite integral of x from 0 to 3? Precalculus Limits, Motion, and Areas The Definite Integral 1 Answer AJ Speller Sep 25, 2014 ∫30xdx =[x22]30 =[(3)22−(0)22] =[(3)22−(0)22] =[92−02] =[92] =4.5 Answer link Related questions What is the definite integral of x2 from 0 to 4? What is an indefinite integral? What is a definite integral? What is the definite integral of lnx from 0 to 1? How do I find a definite integral by computing an area? How can a definite integral be negative? How do I find a definite integral on a TI-84? How do I use a definite integral to find the area of a region? What is the definite integral of sec4x from 0 to π4? What is the definite integral of 136+x2 with bounds [0,6]? See all questions in The Definite Integral Impact of this question 4171 views around the world You can reuse this answer Creative Commons License