Question

Media aritmetica a nr a si b
a= 8-3√7+½(3+√7)²
b=24

Answer 1

a=8-3v7 + (9+6v7+7)/2 aducem la acelasi numitor v-radical =16-6v7+16+6v7/2 =32/2=16 ma=a+b/2= 16+24/2= 40/2=20

Answer 2

a=[8-3√7+(9+6√7+7)/2]=(16-6√7+16+6√7)/2=32/2=16
b=24
Ma=a+b/2
Ma=16+24/2=40/2=20