Jawab:
Penjelasan dengan langkah-langkah:
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Verified answer
Panjang = xlebar = y
luas persegi = panjang x lebar
L= x . y
=x (9-x²)
=9x-x³
L'=9-3x²=0
9=3x²
3=x²
√3=x
Lmaks = 9x-x³
=9√3-(√3)³
=9√3-3√3
=6√3
Jawab:
Penjelasan dengan langkah-langkah: