October 2018 1 55 Report
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Diketahui persamaan kuadrat 3x² + 4x + r = 0. Jika grafik f(x) = 3x² + 4x + r tidak memotong sumbu x, maka batas-batas nilai r adalah ...
a. r >  \frac{4}{3} , r ∈ R
b. r ≥  \frac{4}{3} , r ∈ R
c. r <  \frac{4}{3} , r ∈ R
d. r ≤  \frac{4}{3} , r ∈ R
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