Math Chapter Wise question with answer

Q01 If A∩ ∩ ∩B = B holds for all sets B of the universal Set S, then English · DSSSB PGT 2021 Q02 A relation ρ is defined on a set N by "aρb if and only if a is divisible by b" for all a, b ∈ N. Then ρ is - English · DSSSB PGT 2021 Q03 Let E ⊆ ⊆ ⊆ℝ and f, g, h are the functions from E into ℝ. Suppose a ∈ E and f, g, h are continuous at 'a', then for... English · DSE TGT 2019 Q04 Let f(x) be defined by f(x + y) = f(x) +f(y) for all real numbers x and y, then f(x) is: English · UKPSC Lecturer (Mains) 2020 Q05 If f(x) = cos 2 [π ]x + cos[ 2 π − ]x, where [x] stands for the greatest integer function, then π f 2 = English · UKPSC Lecturer (Mains) 2020 Q06 If n 1 1 A 1,3 n n = + − for all natural numbers n, then n N ∪ ∈ An is, where N is the set of natural numbers. English · UKPSC Lecturer (Mains) 2020