Question regarding optimisation, I do not want to be told the answer, rather I would like help in understanding and creating the equation needed

Question

alexwee123 · Answer

is this like related rates of change?

anonymous · Answer

well
plz let us know about ur question

alexwee123 · Answer

or not ...
please ignore me guys :0

lgbasallote · Answer

i think it is related to related rates....

anonymous · Answer

It is a question regarding area, would you guys be able to help me understand how to get the equation as this is what I always have trouble with when it comes to optimisation

anonymous · Answer

The question is: A woman sells phone cards that are measured 5cm by 8cm and are of negligible thickness. She warps these phone cards in banana leaf which is 10cm by 16cm. She finds that she is able to use a smaller banana leaf if she positions the phone card on an angle on the banana leaf. Calculate the size of the banana leaf needed if she positions the phone card at a 20 degree angle.

anonymous · Answer

So I am aware that I need to find the minimum area of the banana leaf using the specified dimension, those being the phone card and the angle. However, I cannot create the equation needed

anonymous · Answer

The area of the phone card is 40cm^2

anonymous · Answer

It's been a while but I think you will need to figure out the equations in the problem. Take the deritives, find the min and max and use the 2nd deritive test? any of that sounding right?

anonymous · Answer

Yep thats the one, I know how to do the 1st and 2nd derivative etc, it is just the creation of the formula I have trouble with. Do you know how to do that?

ganeshie8 · Answer

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