Question

determinați nr natural n din egalitatea:[(3/5)6]10=[(9/25)5]n​

Answer 1

Răspuns:

[(3 / 5)^6]^10=[(9 /25)^5]^n

[(3 /5)^60]=[(9 /25)^5n]

[(3 /5)^60]=[(3 /5)^2]^5n

[(3 /5)^60]=[(3 /5)^10n]

60=10n

n=60:10

n=6