Question

Sa se calculeze Media aritmetica,media geometrica si media armonica a numerelor:
a=3√3+√2
b=3√3-√2
a=√7+1/2
b=√7-1/2

Answer 1

a=3√3+√2
b=3√3-√2
media aritmtica=(3√3+√2+3√3-√2)/2=6√3/2=3√3
media geometrica=√(3√3+√2)(3√3-√2)=√(27-2)=√25=5
media armonica =2*(3√3+√2)(3√3-√2)/(3√3+√2+3√3-√2)=2*25/6√3=50√3/18=25√3/9
a=√7+1/2
b=√7-1/2
media aritmtica=(√7+1/2+√7-1/2)/2=2√7/2=√7
media geometrica=√(√7+1/2)(√7-1/2)=√(7-1/4)=√27/4=3√3/2=1,5√3
media armonica =2*(√7+1/2)(√7-1/2)/(√7+1/2+√7-1/2)=(2*27/4)/2√7=
= 27√7/4*7=27√7/28