Question

The equation of the plane xy, yz and zx are respectively:–
(a) z = 0, x = 0, y = 0 (b) x = 0, y = 0, z = 0
(c) y = 0, z = 0, x = 0 (d) x = 0, z = 0, y = 0

Answer 1

(a).

$xy$

The xy plane can have any values of x and y, but only z=0.

$yz$

The yz plane can have any values of x and y, but only x=0.

$zx$

The zx plane can have any values of x and y, but only y=0.

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