at work ,Mick is designing a product prototype .Part of the product is a cylinder with a volume of 126 tt cubic inches and a radius of 3 inches .When he presented the prototype to the company ,they decided the cylinder should have a volume of 180 tt cubic inches .How much height will he need to add the original cylinder

could you provide figure.

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?