Explanation
Rational numbers are those numbers which can be expressed in the form pq, where p and q are integers and q≠0
Numbers which are not rational numbers are called irrational numbers. From the given set of numbers, −6,−534,−35,−38,0,45,1,1,23,3.01,8.47 are clearly rational numbers are they can be written in pq form. Now, −√4=−2 which is also a rational number. And, √8=2√2 is not a rational number. Also, π is not a rational number. Hence, the irrational numbers in the given set are {√8,π}
Suppose A1,A2,...,A30 are thirty sets, each with five elements and B1,B2,...,B30 are n sets ecah with three elements. Let 30⋃i=1Ai=n⋃j=1Bj=S
If each element of S belongs to exactly ten of the A′is and exactly none of the B′js then n=
Let n be a fixed positive integer. Let a relation R defined on I (the set of all integers) as follows: aRb iff n/(a−b), that is, iff a−b is divisible by n, then, the relation R is
Please disable the adBlock and continue. Thank you.