If you are leaving positive feedback, I thank you very much for your encouragement and for helping me to promote this website. I also welcome your constructive criticism, especially if you are able to point out any errors that I have made (so that I can correct them).
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Graeme
THANKS A LOT! YOU MADE ME TO LOVE DERIVATIVE! WELL UNDERSTOOD!
Kunle A (on a CCM YouTube video about the Quotient Rule)
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