Question

M'log (1/25) = 3
5'log (n) = -1
tentukan nilai (mxn)

Answer 1

M'log (1/25) = 3
(1/25) = m^3
m = ∛(1/25) atau (1/25)^(1/3)

5'log n = - 1
n = 5^-1
= 1/5

^ = pangkat

Answer 2

M' log 5^{-2} = 3
-2 M' log 5 = 3
M' log 5 = - 3/2
kita balik, ingat sifat:
a' log b = c
b' log a = 1/c, maka

5' log M = - 2/3

ingat sifat a' log b = c, maka b = a^{c}

Maka M = 5^{- 2/3}

5' log N = -1 maka
N = 5^{-1}

sehingga M . N = 5^{- 2/3} . 5^{-1} = 5^{-3/3} = 5^{-1} = 1/5

Semoga Membantu ^^