Math Problem Statement
jika suku ke 4 dan ke 9 berturut turut 20 dan 3, tentukan suku pertama dan beda deret tersebut
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Sequences
Simultaneous Equations
Formulas
Un = a + (n - 1) * b
Theorems
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Suitable Grade Level
Grades 9-11