Question

A line is drwan from p(x1,y1) in the direction theta

Answer 1

Step-by-step explanation:

A line is drawn from P [x1,y1] in the direction alpha with the x-axis , to meet Ax+By +C=0 at Q. Then the length PQ is equal to [a] Ax1+By1+C UPON [A2+B2]1/2 [ b] - [ Ax1+By1+C] upon[ A cos alpha+B sin aipha] [c] Ax1+By1+C upon[ A cos alpha B sin alpha] [d] - [Ax1+ By1+C upon [A sin alpha +B cos alpha ]

hope you get it now....