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Kenneth Rosen Edition 7 Exercise 2.3 Question 63 (Page No. 155)
Pooja Khatri
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Draw the graph of the function $f(n) =$$\left \lfloor 2x \right \rfloor$ from $R$ to $R$
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Kenneth Rosen Edition 7 Exercise 2.3 Question 74 (Page No. 155)
Prove or disprove each of these statements about the floor and ceiling functions. $\left \lfloor \left \lceil x \right \rceil \right \rfloor = \left \lceil x \right \rceil$ for all real numbers $x.$ ... $x$ and $y.$
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Kenneth Rosen Edition 7 Exercise 2.3 Question 73 (Page No. 155)
Prove or disprove each of these statements about the floor and ceiling functions. $\left \lceil \left \lfloor x \right \rfloor \right \rceil = \left \lfloor x \right \rfloor$ for all real number $x.$ ... $x.$
Pooja Khatri
asked
in
Set Theory & Algebra
Apr 11, 2019
by
Pooja Khatri
282
views
kenneth-rosen
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set-theory&algebra
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Kenneth Rosen Edition 7 Exercise 2.3 Question 72 (Page No. 155)
Suppose that $f$ is a function from $A$ to $B$, where $A$ and $B$ are finite sets with $|A|=|B|$. Show that $f$ is one-to-one if and only if it is onto.
Pooja Khatri
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Apr 11, 2019
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Pooja Khatri
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kenneth-rosen
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Pooja Khatri
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Apr 11, 2019
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Kenneth Rosen Edition 7 Exercise 2.3 Question 71 (Page No. 155)
Let $S$ be a subset of a universal set $U$. The characteristic function $f_{s}$ of $S$ is the function from $U$ to the set $\left \{ 0,1 \right \}$ such that $f_{S}(x)=1$ if $x$ belongs to $S$ and $f_S(x)=0$ if $x$ does not belong to $S$. Let $A$ ... $f_{A \oplus B}(x) = f_{A}(x) + f_{B}(x)- 2 f_{A}(x) f_{B}(x) $
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