1. = (2¹⁴·3¹²)/(2¹²·3¹²)=2¹⁴⁻¹²·3¹²⁻¹²=2²=4
12·(12+5√6) + 12·(12-5√6) 144+60√6+144-60√6 288
3. =-------------------------------------- = ------------------------------- = --------- = - 48
(12-5√6)(12+5√6) 144 - 150 -6
2. = log₆3²+log⁶4=log₆9+log₆4=log₆(9·4)=log₆36=2
К 1 номеру:
²/₃·²¹/₁=2·7=14
⁴/₇·²¹/₁=4·3=12
в знаменателе 6¹²=(2·3)¹²=2¹²·3¹²