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Fill in the blanks:(i)         The x–axi...

Fill in the blanks:(i)         The x–axis and y–axis taken together determine a plane known as____(ii)        The coordinates of points in the XY–plane 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)`, where x is x-coordinate and y is y-coordinate
(iii) Coordinate planes divide the space into 8 octants.
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