Question

dau coroana ajutatima va rog​

Answer 1

Răspuns:

a)2,5^8 x2,5^4=2,5^12

b)7,1^9/7,1^6=7,1^3

c)(radical5)^11/radical 5=(radical 5)^10

d)(radical7)^3 x 3 radical 7=3 radical 7 x 3 radical 7=9 x 7=63

e)4,2^5 x 0,5 ^5=(42/10)^5 x (5/10)^5=(21/5)^5 x (1/2)^5=(21/10)^5

f)(radical 18 ) ^3 / (radical 2)^3=(3 radical 2)^3 / (radical 2)^3=3 x 3 radical 2 / 3 radical 2=9 radical 2 / 3 radical 2=3 x 1=3

Explicație pas cu pas:

x=semnul de ori

/=semnul de impartit

^=semnul de (la putere)

Succes!!