electric circuit fundamentals by sergio franco 2nd chapter
L and M are two Parallel Lines intersected by another pair of parallel lines p and q so that triangle ABC is congruent of triangle CDA
line l is the bisector of angle A and Angle B is any point on Dot BP and BQ are perpendiculars from B to the arms of angle AC figure so that
it cot ø=7/8 then what is value of (1+ cos ø) (1+ cos ø) / (1- sin ø) (1+ sin ø)