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∫[0,1]Dx∫[0,√x%x^2](x^2+y^2)^%1/2 Dy

printf("The average is %d\n",&a); return 0; } 还有,你那个a是int的话精度不够啊

%m.nf只能用于输出时指定精度。输入时只能用%f,不能用%m.nf指定输入精度!

MEVD,Z,8;7#X:Z:1E5!J?&Y'.L5Z ;.2A9YV...

2﹙x-1﹚-﹙x-y﹚=358 ,则x+y=360① 112%x+110%y=400 ,则112x+110y=40000② ②-①×110,得112x-110x=40000-39600,解得x=200 代入①,解得y=160

x=-195,y=-70 x=200,y=160 x=322/109,y=60/109 希望能帮到你!

x+y=2 1812%x+10%y=2 解这个方程组即可!

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