Math Problem Statement
Pak Ali ingin memagari kebun seluas 60.000 m2 berbentuk persegi panjang di sisi jalan raya. Pagar yang ia rencanakan untuk digunakan di batas jalan raya berharga 10000 per meter, sedangkan pagar untuk tiga sisi lainnya berharga 5000 per meter. Tentukan biaya terkecil yang harus dikeluarkan oleh pak Ali.
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Optimization
Derivatives
Cost Minimization
Formulas
Luas kebun: p × l = 60,000
Biaya total: 15,000p + 10,000l
Turunan biaya: -900,000,000/l^2 + 10,000
Theorems
Optimization using derivatives
Minimum cost analysis
Suitable Grade Level
Grades 10-12
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