Math Problem Statement
A. Diket P(n+1,3) = P(n,4). Ditanya nC2 b.Diket C(n+1,3)=4C(n,2), hitung P (n,7)
9.Dari 13 Soal Ulangan kimia, seorang siswa diwajibkan mengerjakan 10 Soal. Tentukan banyaknya cara pemilihan soal jika: a.3 nomor pertama harus dikerjakan b.Soal nomor genap harus dikerjakan
10.Dalam sebuah kotak terdiri 5 kelereng merah dan 4 kelereng putih. Akan diambil 3 kelereng sekaligus. Tentukan banyak cara pengambilan kelereng, jika: a.Terdiri sekurang kurangan terdapat kelereng putih b. Paling banyak 2 Kelereng merah
Solution
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Math Problem Analysis
Mathematical Concepts
Permutations
Combinations
Probability
Counting Principles
Formulas
Permutation formula P(n, r) = n! / (n - r)!
Combination formula C(n, r) = n! / (r!(n - r)!)
Theorems
Basic counting principle
Factorial properties
Combination and Permutation theory
Suitable Grade Level
Grades 10-12
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