Question

ex 7 și 8 pls repede
dau coroana​

Answer 1

Învața ca is ușoare

Answer 2

Răspuns:

Explicație pas cu pas:

7.

a)(3/2)²·(3/2)= (3/2)³

b) (13/10)^12:(13/10)^10=(13/10)^2

c) (14/100)^99: (14/100)^99=1

d) (5/4)^5:(5/4)^3=(5/4)^2

e) (4  1/4) ^8: (4  1/4) ^7=(4  1/4) ^1

f) (2/9)^5:(6/27)^4= (2/9)^5:(2/29)^4=(2/9)^1

g) 125/8:(5/2)^2=(5/2)^3:(5/2)^2=(5/2)^1

h) (11/13)^49:(11/13)^49=1

i) (2  1/3)^36:(49/9)^17=(7/3)^36:(7/3)^34=(7/3)^2

8. a) (9/13)^3·(13/3)^3=(9/3)^3= 3^3=27

b) (16)^5·(625/10000)^5=(16·625/10000)^5= (10000/10000)^5=1^5=1

c) (5/10)^3·2^3= (5·2/10)^3=(10/10)^3=1^3=1

d) (0,25)^4·4^4=(1/4)^4·4^4=(4/4)^4=1^4=1

e) (12/100)^149·(8  1/3)^149= (3/25)^149·(25/3)^149=(3·25/25·3)^149= 1^149=1

f) (8  1/3)^4·(24/10)^4= (25/3)^4·(12/5)^4= (25·12/3·5)^4= 20^4= 160000