РЕШИТЕ ПО ДЕЙСТВИЯМ...

Question

РЕШИТЕ ПО ДЕЙСТВИЯМ
а)(1/3)^3*(-1/9):(1/3)^5
б)1,5^4:(-1,5)^3*(-1,5)^0:1,5
в)(8/27):(2/3)^2*(16/81)^6
СПАСИБО

Answer 1

А)(1/3)^3*(-1/9):(1/3)^5= -1/3
1. -1/9= (-1/3)^3
2. -(1/3)^3*(1/3)^3:(1/3)^5= -(1/3)^6:(1/3)^5= -1/3
б)1,5^4:(-1,5)^3*(-1,5)^0:1,5= -1
1. (-1,5)^0=1
2. -1,5^4:1,5^3:1,5= -1,5:1,5= -1
в)(8/27):(2/3)^2*(16/81)^6= (2/3)^25
1. 8/27=(2/3)^3
2. (16/81)^6= ((2/3)^4)^6= (2/3)^24
3. (2/3)^3:(2/3)^2*(2/3)^24= 2/3*(2/3)^24= (2/3)^25