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aritmetika
log (ab⁴) , (log (a³b⁷) , (log a⁶b⁹)

sifat
2. u2 = u1 + u3
2. log (a³b⁷) = log (ab⁴) + log (a⁶b⁹)
log (a³b⁷)²  = log (ab⁴)(a⁶b⁹)
log (a⁶b¹⁴) = log (a⁷b¹³)
a⁶b¹⁴ = a⁷ b¹³
a = b

u1= log ab⁴ = log b⁵ = 5 (log b)
u2 = log a³b⁷ = log b¹⁰ = 10 (log b)
u3 = log a⁶b⁹ = log b¹⁵ = 15.( log b)
..
un = 5n. (log b)
u11= 5(11). (log b) --> u11 = log a^p = p .log a
55 . log b = p. log a --> krn log a = log b
p = 55

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