If A is a set of first 10 natural numbers then number of subsets of A are
If A is a set of first 10 natural numbers then number of subsets of A are
A is a set of first 10 natural numbers and R is a relation from A to A defined as: (x,y) in R hArr x+2y=10 when x,y in A (i)Express R in the form of a set of ordered pairs. (ii) Find the domain and range of R. (iii) Find R^(-1) .
Standard deviation.of the set {10, 10, 9, 10, 10,11,10,11, 9} is
Three numbers are randomly selected from the set {10, 11, 12, ………, 100}. Probability that they form a Geometric progression with integral common ratio greater than 1 is :
