3.4․18 Tangents and Normals

Condition: \ [\ Begin {Array} {lrr} \ Text {Find} \ Quad \ Text {Corner} & \ Text {Between} {straight} \\ \ left {{array} {c} 2 X-Y+Z-4 = 0 \\ 3 X+2 Y-Z-6 = 0 \ END {Array} \ RIGHT. & \ text {and} & \ frac {x+2} {-1} = \ frac {y+4} {-7} = \ frac {z-5} {-5}. \ end {Array} \]