Math Diffusion
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Tag : set theory
If f : R → R such that f(x) = 3x - 4 then which of the following is f^{-1}(x)?
If n(A) = 3 and n(B) = 2 then n(A × B) = . . . . . . .
f : A = {1, 2, 3} , then how many equivalence relation can be defined on A containing (1, 2)