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Show that the line x-21=y-42=z+4-2 passes through the origin. - Mathematics and Statistics

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प्रश्न

Show that the line `(x - 2)/(1) = (y - 4)/(2) = (z + 4)/(-2)` passes through the origin.

योग
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उत्तर

The equation of the line is `(x - 2)/(1) = (y - 4)/(2) = (z + 4)/(-2)`

The coordinates of the origin O are (0, 0, 0)

For x = 0, `(x - 2)/(1) = (0 - 2)/(1)` = –2

For y = 0, `(y - 4)/(2) = (0 - 4)/(2)` = –2

For z = 0, `(z + 4)/(-2) = (0 + 4)/(-2)` = –2

∴ Coordinates of the origin O satisfy the equation of the line.

Hence, the line passes through the origin.

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अध्याय 6: Line and Plane - Exercise 6.1 [पृष्ठ २०१]

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