70*10=700(кг) - привезли на рынок
700кг=7центнеров
1) х=2-1целая 2/7
х=1 целая 7\7-1целая 2\7
х=5\7
2)у=6целых 3\5-3 целые 2\5
у=3целые 1\5(3,2)
1) f(x)=6-1/x x=5; 2; 3; 1/6
f(5)=6-1/5
f(5)=29/5
f(2)=6-1/2
f(2)=11/2
f(3)=6-1/3
f(3)=17/3
f(1/6)=6-1/1/6
f(1/6)=0
2)f(x)=x2+1 x=3; -4; 0; 5
f(3)=6+1
f(3)=7
f(-4)=16+1
f(-4)=17
f(0)=0
f(5)=25+1
f(5)=26
Sqrt x^2+y^2=4-2*y/x/sqrt 1+y^2/x^2
sqrt x^2+y^2=4-2y/x/sqrtx^2+y^2/x
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