i think its proofs mixed with other stuff

[fervent ferry]

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[wind dirge]

label the side that isnt labelled y

and then find an equation for the volume

2y(x^2)=81

rearrange for y

then find an equation for the total length

y= 81/2(x^2)

sub this in

and youll get L

b) differentiate L, equal to 0, find x, sub back into L

c) differentiate dL/dx, sub in ur x value, if its above 0 its a minimum

[shut lynx]

@wind dirge ty everything makes sense

[sly bay]

@shut lynx has given 1 rep to @wind dirge

[shut lynx]

+close