23. Lim x -> 1 (2x^2 - x - 1) / (3x^2 - x - 2) = ...
A. 0
B. 2/3
C. 3/5
D. 0
E. ∞
Jawaban :
Lim x -> 1 (2x^2 - x - 1) / (3x^2 - x - 2)
Lim x -> 1 (2x + 1) (x - 1) / (3x + 2) (x - 1)
coret (x - 1)
Lim x -> 1 (2x + 1) / (3x + 2)
masukkan nilai x = 1
(2 (1) + 1) / (3(1) + 2)
= (2 + 1) / (3 + 2)
= 3 / 5
Jawaban : C
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