Calculus, Derivatives, Mathematics, Machine Learning.
https://www.mathdoubts.com/derivative-sum-rule/ https://www.khanacademy.org/math/old-ap-calculus-ab/ab-derivative-rules/ab-diff-negative-fraction-powers/a/power-rule-review https://www.khanacademy.org/math/ap-calculus-ab/ab-differentiation-1-new/ab-2-7/a/proof-the-derivative-of-is