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#### Petrus

##### Well-known member

- Feb 21, 2013

- 739

Decide one parameter producing for line l through the points \(\displaystyle P=(1,1,2)\) and \(\displaystyle Q=(2,-3,5)\)

This is a exempel from my book, I understand how they got the first line but not the second, (I hope that it don't mather it's on Swedish)

Regards,

\(\displaystyle |\pi\rangle\)