Задание 1
log(a)b + log(a)c = log(a)(b*c)
1) log(3)9 = 2
log(a)b - log(a)c = log(a)(b:c)
2) log(5)5 = 1
rlog(a)b = log(a)(b^r)
3) log(2)8 = 3
4) log(0,3)0,09 = 2
Задание 2
log(a)^(log(a)b) = b
a^(a+b) = a^a + a^b
1)(√20)² * (√20)^log(20)16 = 20 * 4 = 80
2) 1/70 * 343 = 4,9