How to make a perfect parallel line
using properties of sets,show that for any two sets A and B,(AUB)INTERSECTION(AUB')
check this solution at last step negative sign multiplied by another negative shiuld b positive
In fig.x,P is the mid point of side BC of a parallelogram ABCD such that Angle BAP = Angle DAP.prove that AD=2CD
A man wants to cut three lenghts from a single piece of board of length 91 cm. The second length is to be 3 cm longer than the shortest and the third length is to be twice as long as the shortest . What are the possible lenghts of shortest board if the third piece is to be at leat 5cm longer then the second?