If `n(A)=p,n(B)=q` and total number of functions from A to B is 343, then p-q (A) 3 (B) -3 (C) 4 (D) none of these

If n(A)=2 and total number of relations from A to B is 1024, then number of elements in B is (A) 4 (B) 5 (C) 6 (D) none of these

If n(B)=2 and the number of functions from A and B which are onto is 30, then number of elements in A is (A) 4 (B) 5 (C) 6 (D) none of these

If Delta P Q R\ ~= Delta E F D , then /_E= (a) /_P (b) /_Q (c) /_R (d) None of these

If P = {1,2,3,4,5} and Q = {a,b,c}, then the number of onto functions from P to Q is

If a,b,c,d are distinct positive then a^n/b^ngtc^n/d^n for all epsilon N if a,b,c,d are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

Let A and B be any two sets such that n(B)=P, n(A)=q then the total number of functions f: A -> B is equal to

Let A and B be any two sets such that n(B)=P, n(A)=q then the total number of functions f: A -> B is equal to

If P=(a,b,c) and Q=(1,2) , then the total number of relations P to Q are not functions is

|(a+1, a+2, a+p), (a+2, a+3, a+q) ,(a+3, a+4, a+r)|=0 , then p, q r are in (A) A P (B) G P (C) H P (D) none of these

If p >1a n dq >1 are such that log(p+q)=logp+logq , then the value of log(p-1)+"log"(q-1) is equal to 0 (b) 1 (c) 2 (d) none of these