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Fill in the blanks: (i) The xaxis and ya...

Fill in the blanks: (i) The xaxis and yaxis taken together determine a plane known as____ (ii) The coordinates of points in the XYplane are of the form_____ (iii) Coordinate planes divide the space into ____ octants____

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(i) The x-axis and y-axis taken together determine a plane known as XY-plane.
(ii) The coordinates of points in the XY-plane are of the form (x,y,0).
(iii) Coordinate planes divide the space into 8 octants.
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