The number of 7 digit integers abcdefg, where `a lt b lt c lt d gt e gt f gt g` such that a, b, c, d, e, f, g in {1,2,3,…..,9}`. Are

Let A be the set of 4 - digit numbers abcd, where a gt b gt c gt d , then n (A) equals :

a = e gt b = d gt c

(a)/(b) = (c)/(d) = (e)/(f) = k(a, b, c, d, e, f gt 0) then

If a and b are whole number such that a^(b)=512 where a gt b and 1 lt b lt 4 then bsqrt(a) =

State, whether the following statements are true of false. If a lt b, and c gt 0 , then a - c gt b - c where a, b, c and d are real number and c =! 0 .

If a and b are two negative integers such that a lt b " then " (1)/(a) gt (1)/(b) .

Let a,b,c,d,e, be real numbers such that a+b lt c+d , b+c lt d+e, c+d lt e+a, d+e lt a+b . Then