প্রোনোবা মথ এর নির্দিষ্ট পরাগায়নকারী: (ক) ইভিনিং প্রিমরোজ \n\n(b) ওফ্রিস \n\n(c) ইউকা \n\n(d...

If ""^(n)C_(a)= ""^(n)C_(b) ' then find n.

If a\ a n d\ b are two numbers such that a b\ =\ 0 , then (a) a\ =\ 0\ a n d\ b\ =\ 0 (b) a\ =\ 0\ or\ b\ =\ 0 (c) a\ =\ 0\ a n d\ b!=0 (d) b\ =\ 0\ a n d\ a!=0

If n(A xx B) = 24, n(B xx C) = 36 , and n(B) = 3 , then n(A xx C) =

If n is a whole number such that n+n=n ,\ t h e n\ n=? (a) 1 (b) 2 (c) 3 (d) none of these

If the total number of relations form set A to set B is 1024, and n(A)gt1, n(B)gt1, then (A) n(A)=2, n(B)=5 (B) n(A)=5, n(B)=2 (C) n(A)=10, n(B)=1 (D) n(A)=1, n(B)=10

If Aa n dB are two sets such that n(A)=150 ,n(B)=250 a n d n(AuuB)=300. Find n(A-B) a n d n(B-A)dot

The sum of first n odd natural numbers is 2n-1 (b) 2n+1 (c) n^2 (d) n^2-1

If the product of n positive numbers is n^n , then their sum is (a)a positive integer (b). divisible by n (c)equal to n+1//n (d)never less than n^2