Question

5. Scrieți, folosind o singură putere:
15
Esci
3
5
5
7
3
15
3
4
4
Matematică. Clasa
;
c) 2
2.
7
d)
(10)
b)
a)
2
2
10
90
10
2
5
5
125
125
e)
f)
100
100
90
10
3​

Answer 1

a) (3/4)^3 X (3/4)^5 = (3/4)^8

b) (29/4)^15 : (29/4)^12 =(29/4)^3

c)  [(3/31)^4]^5 =(3/31)^20

D) [2,(5)]^4 x [2,(5)]^5 =[2,(5)]^9

E) (49/9)^21 : {[5,(4)]^4}^5=(49/9)^21:[(54-5)/9]^20=(49/9)^21:(49/9)^20=49/9

f) (76/19)^3 x (38/25)^3 = 2³.38³/19³ x38³/5^6=2³.38^6/19³.5^6

g) (0,12)^7 X (8 pe langa 1/3)^7=(12/10)^7 x(25/3)^7

presupun c pe langa inseamna 8 intregi si 1/3

(6/5)^7x(5^14/3^7)=(2^7x3^7x5^14)/(5^7x3^7)=2^7x5^7=10^7

Sper ca te-am ajutat!