Qualification > Math
[CIE] All Pure Mathematics (P1, P2 and P3) doubts here !
Most UniQue™:
--- Quote from: astarmathsandphysics on December 08, 2011, 07:14:29 pm ---Done step by tiny step in attachment. Am in a slow mood.
--- End quote ---
Thank you!
silvercameron:
this is a Diffrentiation question and i have got no idea how to solve it:
A rectangular box is to be made with a square base, and its capacity is to be 4000 cm^3. Find the length of the side of the base when the amount of material used to make the box is as small as possible.
astarmathsandphysics:
An optimization question. Find expression for area and volume, sub the expression for area into thhat for volume then find turning point bydifferentiation.
silvercameron:
thanks to you, sir.
I got the correct answer.
astarmathsandphysics:
I wrote that on my phone cos I was out. It was a note to myself to do the question, but if you did it yourself that's great.
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