Recent content by WiseGuy1995

yea sorry about that i now understood that i actually answered iv) not trying to confuse you , just a lapse in concentration on my part. thanks for your help btw

iv) i thought i was answering iii) :confused: so how do i get the answer for iii) ?

when i did the differentiation i got r^3 = 2V/4π Is this correct?

do you mean like 2πr^2 + 2πr(V ÷ πr^2) and differentiate?

care to explain how you arrived at 42? thanks

Homework Statement Is minimiznig the area of tin used to make a can an important factor? Suppose a manufacturer wishes to enclose a fixed volume,V, using a cylindrical can. The height of the cylinder is denoted by h, and the radius of the cylinder can section by r. i)Write a function for the...