A conjecture and the two-column proof used to prove the conjecture are shown. Given: K is the midpoint of segment J L. L is the midpoint of segment K M. Prove: segment J K is congruent to segment L M. Art: Segment JM is has endpoints J and M. K and L are points on the segment.

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?