NCERT Exercise 11.1 Q4 - Introduction to Three Dimensional Geometry
Question: Fill in the blanks: (i) the x-axis and y-axis determine the ___ plane; (ii) points in the XY-plane have the form ___; (iii) coordinate planes divide space into ___ octants.
Answer: (i) XY-plane; (ii) (x, y, 0); (iii) eight.
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