ABSTRACT
When differentiating the product uv, where u and v are both functions of x, then: https://www.w3.org/1998/Math/MathML"> d d x ( u v ) = v d u d x + u d v d x https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315843629/20901bc5-1466-42ee-a7e4-0cc2fff34b68/content/math_866_B.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> This is known as the product rule for differentiation.
