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f(x) = x + 3
g(x) = x²
Nilai x = 0
• f(0) => 0 + 3 = 3
• g(0) => 0² = 0
• f(0) + g(0) => 3 + 0 = 3
• f(0) – g(0) => 3 – 0 = 3
• f(0) . g(0) => 3 . 0 = 0
• f(0) / g(0) => 3 / 0 = tidak terdefinisi
Nilai x = 2
• f(2) => 2 + 3 = 5
• g(2) => 2² = 4
• f(2) + g(2) => 5 + 4 = 9
• f(2) – g(2) => 5 – 4 = 1
• f(2) . g(2) => 5 . 4 = 20
• f(2) / g(2) => 5/4