let a be an integer and satisfy（a+1）^2＜2008＜a^2,then a=?

If rational number a,b,and c satisfy a＜b＜c,then｜a-b｜+｜b-c｜+｜ Let a,b and c are raional numbers which satisfy 英语翻译if n is a positive integer,then n(n+1)(n+2) isA even onl If k is a positive even integer,then (k+1)(k+2). If a is an odd number,then there must exist an integer such If [a] indicates the greatest integer less than a,then ( ) ( if [a] indicates the greatest integer less than a,then 英语翻译2、vara,b:integer;functionwork(a,b:integer):integer;begin dim a(3,2) as integer If =a(a+1)/2 for all integres a and b =,then is( ) If k is a positive even integer,then. if n is a positive integer and 2^n + 2^n+1=k,what is 2^n+2 i