Recent content by Thepiman12

Homework Statement 12.5 sin(0.06 t) What rule would I use to differentiate it? Homework Equations - The Attempt at a Solution Chain rule?

I expanded the brackets and got 2πr^2+80r^-1 And differentiated that to 4πr-80r^-2 Is that correct? After that how would I go on to find the radius r?

Homework Statement A closed cylinder is required to have a volume of 40m^3 but made with the minimum amount of material. Determine the radius and height the cylinder must have to meet such a requirement. V= πr^2h Steps needed: a) Insert value and transpose for h b) Then sub into...