Log4(log2(16)) = log4(4) = 1
А) 46+22+18=46+(22+18)=46+40=86
б) 19+56+11=(19+11)+56=30+56=86
в) 138+36+22=(138+22)+36=160+36
=196
г) 456+22+78=456+(22+78)=456+100
=556
д) 664+13+87=664+(13+87)=664+
+100=764
е)134+408+166=(134+166)+408=
=300+408=708
ж) 7+(93+456)=(7+93)+456=100+
+456=556
з) 42+(58+495)=(42+58)+495=100+
+495=595
(1/3) ^ (2*x - 19) = 1/27
(1/3) ^ (2*x - 19) = (1/3)^3
2*x - 19 = 3
2*x = 22
x = 11