在空间直角坐标系中,指出A(1,-2,3) 是 卦限,B(2,3,-4)是 卦限,C(2,-3,-4)是 卦限,D(-2,-3,1)是 卦限
举一反三
- 空间直角坐标系中,指出下列各点在哪个卦限?__(1) (2,-3,4)第____________卦限 (2) (2,3,-4)第____________卦限 __ (3) (2,-3,-4)第____________卦限 (4) (-2,-3,4)第____________卦限
- 在空间直角坐标系中,指出下列各点在哪个卦限? (1)(2,-3,4)第____________卦限(2)(2,3,-4)第____________卦限 (3)(2,-3,-4)第____________卦限(4)(-2,-3,4)第____________卦限
- 在空间直角坐标系中,第五卦限的点是() A: (-2,-3,1) B: (2,-3,-4) C: (1,-2,3) D: (2,3,-4)
- 在空间直角坐标系中,指出下列各点在哪个卦限?A(1,-2,3),B(2,3,-4),C(2,-3,-4),D(-2,-3,1)
- 在空间直角坐标系中,在第五卦限的点是 A: (1,-2,3) B: (2,3,-4) C: (2,-3,-4) D: (-2,-3,1)