Formulas for ∑r, ∑r^2, ∑r^3 (∑r, ∑r^2, ∑r^3 සඳහා ප්‍රකාශන)

SJP Mathematics in Sinhala Series – A/L Pure Mathematics (Year 13)
Department of Mathematics, University of Sri Jayewardenepura

Preparation and narration : Ms. Srimali Abeykoon
Supervision and guidance: Prof. Sunethra Weerakoon and Mr. Kapila Silva

Contact: combinedmathsvideos.sjp@gmail.com