WMA14/01, IAL, (Edexcel), P4, October 2022, Q5, Integration, Volumes of Revolution

[@vinesandeverythingnice2338]

Hello sir 9:53 in this part why was 144x not integrated into 144x^2 i got the inside bracket reverse chain rule but why was 144 left the same ?

[@MrHassaansMathsChannel]

pls watch this video ua-cam.com/video/QQ5BFDjA5-8/v-deo.html

[@ayomideakinsanya2135]

How did you integrate 144x(2x^2+3)^-3

[@MrHassaansMathsChannel]

Watch from 9:00

[@owenbanfield7925]

how do you know that the "h" of the volume is "dx"? I understand how y is the radius, just not how dx is the height

[@MrHassaansMathsChannel]

Watch this video ua-cam.com/video/oQCGYGKPKe8/v-deo.html