Question

 

Viết gọn bằng cách dùng lũy thừa:

a) 7.7.7.7

b) 10.100.1000

c) 4.6.9.15.25

d) a.a.a.b.b.c

 

Answer 1

`b)10.100.1000=10.10^2 .10^3=10^[1+2+3]=10^6`

`d)a.a.a.b.b.c=a^[1+1+1].b^[1+1].c=a^3 .b^2 .c`

Answer 2

`a, 10 . 100 . 1000 = 10 . 10^2 . 10^3 = 10^6`

`b, a.a.a.b.b.c = a^3 . b^2 .c`

Answer 3

\(10 .100 . 1000= 10 . 10^2 . 10^3= 10. 10^2+^3 =10^6 \)

\( a.a.a.b.b.c=a^3.b^2.c\)