I added a video to a @YouTube playlist https://t.co/KhiOiB5vVT A-Level Maths 2017 G2-10 Differentiation: Differentiating ln(kx)
— Jack Brown (@TLMaths) October 3, 2017
from Twitter https://twitter.com/GuideCalculator
October 03, 2017 at 09:40AM
via IFTTT
