- #1

- 55

- 0

this is the question but i got stuck half way when i was differentiating the equation

how do i work this out :

[square root of (4-y^2)] + ([-y ^2] \ square root[ 4- y^2])

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- Thread starter rachael
- Start date

- #1

- 55

- 0

this is the question but i got stuck half way when i was differentiating the equation

how do i work this out :

[square root of (4-y^2)] + ([-y ^2] \ square root[ 4- y^2])

- #2

- 172

- 2

If you observe the expression, is there something you can factorize that will make it easier to solve for y when you set [tex]\frac{dA}{dy}=0[/tex]?

- #3

- 590

- 0

What can you say about the length of the side of this square ?

Hint:Draw radii to the corners of the square .

Of course if the symmetry isn't apparent, you can always go for the calculus approach, which involves setting up coordinate axes and maximising .

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