Tolong bantu jawab no 7 sama 8 pake caranya
Matematika
unisoteria
Pertanyaan
Tolong bantu jawab no 7 sama 8 pake caranya
1 Jawaban
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1. Jawaban ahreumlim
R(x) = x³ - 4
y = x³ - 4
x³ = y + 4
x = ∛(y + 4)
Jadi R⁻¹(x) = ∛(x + 4) **D**
Misalkan
3x² - 3x + 2 = z
T(z) = 5x + 7
y = 5x + 7
5x = y - 7
x = (y-7) / 5
T⁻¹(x) = (x-7) / 5
T⁻¹(12) = (12-7) / 5
= 5/5
= 1 **B**