Calculati media aritmetica  a numerelor  4√5,2√5,5√5 si 9√5




Răspuns :

4√5+2√5+5√5+9√5÷4=20√5÷4=5√5
[tex] m_{a} [/tex] = 4v5+2v5+5v5+9v5 /4
=20v5/4
=5v5