Integral Calculus: Definite Integral

This video is for students, reviewees, and teachers who are having a hard time understanding Integration.

This is a raw video and unedited due to time constraints. Please pardon me if there are mistakes in the video. Feel free to comment down your corrections and suggestions to help me improve videos in the future. I am using mixture of Filipino and English language in this video.

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About me:
I am Jay T. Cabuñas, civil engineer, master plumber, DPWH accredited materials engineer 1 and an engineering professor from Davao