Product Rule of Calculus

Or written using the

“special D” for derivative

rather than “prime”:

Product Rule of Calculus

For example:

Surface Area

of a cylinder

I can never remember the formula

The “special d”

also means “boundary”

The “special d”

also means “boundary”

The “special d”

also means “boundary”

The product rule of

as “derivative”

works also with

as “boundary”

Volume of a cylinder

Surface area

of a cylinder

Surface area Volume

Surface area

of a cylinder

(top & bottom) “paper towel roll” sides