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若a+b+c≠3,则a2+b2+c2<3 若a+b+c=3,则a2+b2+c2<3 若a+b+c≠3,则a2+b2+c2≥3 若a2+b2+c2≥3,则a+b+c=3
int x[][3]=0,1,1,2,3; int x[4][3]=1,2,3,1,2,3,1,2,3,1,2,3; int x[4][]=1,2,3,1,2,3,1,2,3,1,2,3; int x[][3]=1,2,3,4;
int X[][3]=0,1,1,2,3; int X[4][3]=[1,2,3,1,2,3,1,2,31,2,3 int X[4][]=1,2,3,1,2,3,1,2,3,1,2,3; int X[][3]=1,2,3,4;
如果a+b+c≠3,则a2+b2+c2<3 如果a+b+c=3,则a2+b2+c2<3 如果a+b+c≠3,则a2+b2+c2≥3 如果a2+b2+c2≥3,则a+b+c=3
int x[][3]={{0},{1},{1,2,3}}; int x[4][3]={{1,2,3},{1,2,3),{1,2,3},{1,2,3}}; int x[4][]={{1,2,3},{1,2,3},{1,2,3},{1,2,3}}; int x[][3]={1,2,3,4};
若a+b+c≠3,则a2+b2+c2<3 若a+b+c=3,则a2+b2+c2<3 若a+b+c≠3,则a2+b2+c2≥3 若a2+b2+c2≥3,则a+b+c=3
int x[ ][3]={{0},{1},{1,2,3}}; int x[4][3]={{1,2,3},{1,2,3},{1,2,3},{1,2,3}}; int x[4][ ]={{1,2,3},{1,2,3},{1,2,3},{1,2,3}}; int x[ ][3]={1,2,3,4};
的坐标为(3,2),则点 点 点 的坐标分别是 图7-26 A.(3,-2)(-3,2)(-3,-2) B.(-3,2)(-3,-2)(3,-2) C.(2,-3)(-2,-3)(-2,3) D.(-2,3)(-2,-3)(2,-3)
intx[][3]=0),1,1,2,3; intx[4][3]=1,2,3,1,2,3,1,2,3,1,2,3; intx[4][]=1,2,3,1,2,3,1,2,3),1,2,3; int x[][3]=1,2,3,4;
2-3-2-2-3 2-2-3-2-3 2-3-3-2-2 2-2-2-3-3
2-3-2-2-3 2-2-3-2-3 2-3-3-2-2 2-2-2-3-3
2-3-2-2-3 2-2-3-2-3 2-3-3-2-2 2-2-2-3-3
int x[][3]=0,1,1,2,3; int x[4][3]=1,2,3,1,2,3,1,2,3,1,2,3; int x[4][]=1,2,3,1,2,3,1,2,3,1,2,3; int x[][3]=1,2,3,4;
int x[][3]=0, 1, 1, 2, 3; int x[4][3]=1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3; intx[4][]=1, 2, 3), 1, 2, 3, 1, 2, 3), 1, 2, 3; int x[][3]=1, 2, 3, 4;
2;2;2;3;3;3;4;4;4 2;3;4;2;3;4;2;3;4 3;3;3;3;3;3;3;3;3 4;3;2;4;3;2;4;3;2
int x[][3]=(0,1,1,2,3); int x[4][3]=1,2,3,1,2,3,1,2,3,1,2,3); int x[4][]=1,2,3,1,2,3,1.2,3,1,2,3); int x[][3]=1,2,3,4;
(2,3)或(﹣2,3) (2,3)或(﹣2,﹣3) (﹣2,3)或(﹣2,﹣3) (﹣2,3),(﹣2,﹣3),(2,3)或(2,﹣3)
a=3,b=2,c=3 a=-3,b=2,c=3 a=3,b=2,c=-3 a=3,b=-2,c=3
2 2 2 3 3 3 4 4 4 2 3 4 2 3 4 2 3 4 3 3 3 3 3 3 3 3 3 4 3 2 4 3 2 4 3 2