Question

determinati n apartine lui N astfel incat:
0.25^n*0.4^n=0.01

Answer 1

Avem o regula:
a^n ori b^ n = ( a ori b ) ^n
 Deci 0.25^n*0.4^n= ( 0.25*0.4)^n= 0.1^n
 Rezulta ca : 0.1^n=0.01. o.01=0.1^2
0.1^n=0.1^2
Deci n=2