Răspuns :
a. M a = 10 radical 2 +0... 10radical 2
Mg = (5radical2 -1) x ( 1+5radical2 ) = 25x2-1 = 49
Mg = (5radical2 -1) x ( 1+5radical2 ) = 25x2-1 = 49
media aritmetica = a+b supra 2
= 5radical2-1+1+5radical2 supra 2
= 10radical2 supra 2
= 5radical2
media geometrica = √a*b = √(5√2-1)(5√2+1) =√50-1=√49 = 7
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= 5radical2-1+1+5radical2 supra 2
= 10radical2 supra 2
= 5radical2
media geometrica = √a*b = √(5√2-1)(5√2+1) =√50-1=√49 = 7
restul nu mai stiu