Jika lim ×->a ×^2+(3-a)×-3a/×-a=7/2, nilai a adalah....
Matematika
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Pertanyaan
Jika lim ×->a ×^2+(3-a)×-3a/×-a=7/2, nilai a adalah....
1 Jawaban
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1. Jawaban arsetpopeye
Lim (x^2 + (3 - a)x - 3a) / (x - a) = 7/2
Lim (x - a)(x + 3) / (x - a) = 7/2
Lim (x + 3) = 7/2
(a + 3) = 7/2
a = 7/2 - 3 = 1/2