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September 16th, 2015, 03:31 PM   #1
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find all the lines secant to the four lines

Can i get please,

In R3 , find all the lines secant to the four lines
  • x − 1 = y = 0
  • y − 1 = z = 0
  • z − 1 = x = 0
  • x = y = −6z
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September 19th, 2015, 06:53 AM   #2
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What do you mean by "secant" to the four lines? A "secant" to a circle is any line that crosses through the circle and that can be extended to a general curve as "any line that crosses the curve". But what are you looking for here? Any line that crosses any one of the four given lines? Or any line that crosses the four sided figure bounded by those lines?

And do you mean "R2"? In R3 those would be the equations of planes, not lines.
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