Question

19/a
a=3^n*5^n+2+3^n+2*5^n-3^n+1*5^n+1
a este nr. natural​

Answer 1

Răspuns:

19/15^n+3+3*5^n

Explicație pas cu pas:

=19/(3*5)^n+2+2*5^n+5^n+1=

=19/15^n+2+2*5^n+5^n+1

=19/15^n+3+3*5^n

/ = Supra

^ = La puterea