Diketahui:
p(x) = 4(³logx)-1
Ditanyakan:
p-¹(15)
Jawab:
y = 4(³logx)-1
y+1 = 4(³logx)
(y+1)/4 = ³logx
3^((y+1)/4) = x
p-¹(x) = 3^((x+1)/4)
p-¹(15) = 3^((15+1)/4)
= 3^(16/4)
= 3⁴
= 81
Mapel: Matematika
Kelas: 10
Materi: Fungsi Invers
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Diketahui:
p(x) = 4(³logx)-1
Ditanyakan:
p-¹(15)
Jawab:
p(x) = 4(³logx)-1
y = 4(³logx)-1
y+1 = 4(³logx)
(y+1)/4 = ³logx
3^((y+1)/4) = x
p-¹(x) = 3^((x+1)/4)
p-¹(15) = 3^((15+1)/4)
= 3^(16/4)
= 3⁴
= 81
Mapel: Matematika
Kelas: 10
Materi: Fungsi Invers