Question
If U={1,2,3,4,5,6,7,8,9,10}, A={1, 2, 3, 4} B={x/x belongs to P, x<7} prove that (A intersection B) complement =A compliment intersection B compliment
In a triangle abc angle B equal to two angle C and the bisector of Angle B intersect AC at D.prove that BD / DA equal to BC / BA
