Jawab:
Persegi dalam segitiga
Penjelasan dengan langkah-langkah:
i) garis y = 30 - x melalui (a,b)
b = 30 - a ...(i)
ii) luas persegi empat = p . l
p = a , l = b
L = pl = a b
L(a) = a . (30 - a)
L(a) = 30a - a²
maksimum tercapai jika L'(a) = 0
30 - 2a = 0
a = 15
b= 30 - a
b = 15
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Verified answer
Jawab:
Persegi dalam segitiga
Penjelasan dengan langkah-langkah:
i) garis y = 30 - x melalui (a,b)
b = 30 - a ...(i)
ii) luas persegi empat = p . l
p = a , l = b
L = pl = a b
L(a) = a . (30 - a)
L(a) = 30a - a²
maksimum tercapai jika L'(a) = 0
30 - 2a = 0
a = 15
b= 30 - a
b = 15