Answers

2016-08-03T22:56:54+08:00
8+x]^2 =x^2 +y^2;

60=xy

x=60/y; y=60/x
x^2 +16x +64=x^2+y^2;
y^2-16x-64=0....2;

1/2;
y^2 -16(60/y)-64=0;
y^2-960/y-64=0
y^3-960-64y=0;
y^3-64y=960;
y(y^2-64)=960;

y=8m
60=xy;

x=60/8;
x=7.5m ^-^





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