| (A) Equations of line through (5,−4,6) with direction ratios 3,7,2 | (I) 5x+3​=−4y+7​=6z+2​ |
| (B) Equations of line through (3,7,2) with direction ratios 5,−4,6 | (II) 5x−3​=−4y−7​=6z−2​ |
| (C) Equations of line through (−5,4,−6) with direction ratios 3,7,2 | (III) 3x−5​=7y+4​=2z−6​ |
| (D) Equations of line through (−3,−7,−2) with direction ratios 5,−4,6 | (IV) 3x+5​=7y−4​=2z+6​ |