Oblicz, korzystając z podanej obok równości.
Dla a>0,a=1: logaA^x=x
a) log3 3^5
b) log1\2 (1\2)^4
c) log3 3^1\2
d) log1\2 (1\2)^-3
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a) log3 3^5 = 5 * log3 3 = 5 * 1 = 5
b) log1\2 (1\2)^4 = 4 * log1/2 1/2 = 4 * 1 = 4
c) log3 3^1\2 = 1/2 * log3 3 = 1/2 * 1 = 1/2
d) log1\2 (1\2)^-3 = -3 * log1/2 1/2 = -3 * 1 = -3
wzór ---- loga a^n = n * loga a = n * 1 = n