Pair of Straight Lines
https://alnasiry.net/forums/showthread.php/12510-Transformation-of-axis?p=51451#post51451
عرض للطباعة
Pair of Straight Lines
https://alnasiry.net/forums/showthread.php/12510-Transformation-of-axis?p=51451#post51451
1-GEO 28
Show that the equation x2+6xy +9y2 +4x +12y - 5 = 0 represent pair of parallel lines and find the distance between them.