tentukan himpunan penyelesaian dari setiap persamaan logaritma berikut a. log{log(4x-5)}=2 b. log{log(2x+6)}=log(x-1)

LogAritMa

a][
log (log (4x - 5)) = 2
log (4x - 5) = 10^2
4x - 5 = 10^(10^2)
4x = 5 + 10^100
x = (5 + 10^100)/4

b][
log (log (2x + 6)) = log (x - 1)
log (2x + 6) = x - 1
2x + 6 = 10^(x - 1)
2x + 6 = 10^x /10
20x + 60 = 10^x
60 = 10^x - 20x
coba2 x = 2 ✓
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