(4-log x) log x = log 1000 x =...
Matematika
stevan27simamota
Pertanyaan
(4-log x) log x = log 1000
x =...
x =...
1 Jawaban
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1. Jawaban Dyap
(4-logx) logx = log 1000
-log² x + 4 log x - 3 = 0
log²x - 4logx +3 = 0
(logx -3)(log x -1) = 0
log x = 3 atau log x = 1
x= 30 atau x= 10