Question

Kalo 1-log 2 = 2.10^-1 kalo 9-2 log 2 berapa?

Answer 1

#Note :
log 10 = 1


1 - log 2 = 2.10^-1
1 - log 2 = 2/10
log 10 - log 2 = 2/10
log 10/2 = 0,2
log 5 = 0,2

9 - 2 log 2 = ..
= log10^9 - 2 log 2
= log10^9 - log 2^2
= log10^9 - log 4
= log
= log
= log
= log10^7 + log25
= 7 + log5^2
= 7 + 2 log 5
= 7 + 2 (0,2)
= 7 + 0,4
= 7,4

9 - 2 log 2 = 7,4

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