Question

cele 2 exercitii de mai jos va rog ​

Answer 1

Răspuns:

√(a·b)=√5

ab=5

a=1 , b=5

a=5 , b=1

____________

√(3ˣ·9ⁿ)=9

√[3ˣ(3²)ⁿ=9²

3ˣ3²ⁿ=(3²)²

x+2n=3⁴

x=n+1

n+1+2n=4

3n=4-1

n=3/3=>n=1

x=1+1=>x=2

am inlocuit y cu n