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Next exam on November 14 – 15, 2026:
All concepts

Space Rectangular Coordinates

空间直角坐标系

Coordinates of points reflected in the axes, coordinate planes and origin (keep the coordinates of what you reflect in), plus the space distance formula.

Not yet examined7 in mock papers24 practice

Formulas

  • Distance in Space

    Formula
    ∣AB∣=(x2−x1)2+(y2−y1)2+(z2−z1)2|AB|=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}+(z_{2}-z_{1})^{2}}

Real-exam evidence

Recorded past-paper appearances are listed below; online verification is labelled separately.

No question in the past papers on record tests this concept yet. It is in the syllabus, so it can still come up.

7 questions across 7 mock papers — our own papers, so a coverage signal rather than real-exam evidence

24 related practice questions availablePractise free: Space Coordinate

Sitting evidence comes from the CSCA past papers on record; questions whose original paper is missing are excluded, and sprint papers are deliberately not counted.

Related concepts

Vectors and the Dot ProductQuadrants of the Coordinate PlaneEquations of LinesEquations of CirclesConic Sections: Basic Quantities