Let n(A)=4 and n(B)=6 ,then the number of one one functions from A to B must be M. Then `sqrt(M/10)` is equal to ?

Let A={a,b,c} . Write all one-one functions from A to A.

If function f(x) is defined from set A to B, such that n(A)=3 and n(B)=5 . Then find the number of one-one functions and number of onto functions that can be formed.

Let n(A) = m, n(B) = n, then the total number of relations between A and B is K^(mn) , find K.

If n (A) =3 ,n(B)=6 and A sube B .Then the number of elements in A cup B is equal to

Let n(A) = 4 and n(B) = 5 and if in the case of one-one mapping A to B n(A) = 3,n(B) = 4, then the value of n(AxxAxxB) = 6K. Find K.

Let A and B be two sets consisting of m and n elements respectively (n ge m) . The number of one - one functions from A to B is

Let A ={a,b}, write all one-one mappings from A to itself.

Two regular polygons have sides m and n respectively . If the number of degrees in an angle of the first is equal to the number of radians in an angle of the second , show that , (n(m-2))/(m(n-2))=pi/(180)

Straight lines are drawn by joining m points on a straight line of n points on another line. Then excluding the given points, the number of point of intersections of the lines drawn is (no tow lines drawn are parallel and no these lines are concurrent). a. 4m n(m-1)(n-1) b. 1/2m n(m-1)(n-1) c. 1/2m^2n^2 d. 1/4m^2n^2

Let n be a natural number. Then the range of the function f(n)=^(8-n)P_(n-4), 4lenle6 , is