20/7x-6=4
volumen de revoluciĆ³n 3x^2 + 2 entre las rectas x =1 y x = 3
x+30=x $\sqrt3$
x+30=x*3^{1/2}
6/6 - 2/3
3/6 - 1/3
20/4 - 4/5
4/5 - 6/8
4/4 - 6/8
If a and b are integers and a < b, b > 1 then compare a-1/b-1 , a+1/b+1.