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Hot questions in Engineering Mathematics
0
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3241
Kenneth Rosen Edition 7 Exercise 2.3 Question 62 (Page No. 155)
Draw the graph of the function $f(n) = 1-n^2$ from $Z$ to $Z$
Draw the graph of the function $f(n) = 1-n^2$ from $Z$ to $Z$
Pooja Khatri
162
views
Pooja Khatri
asked
Apr 11, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3242
Kenneth Rosen Edition 7 Exercise 2.3 Question 64 (Page No. 155)
Draw the graph of the function $f(n) =$\left \lfloor x/2 \right \rfloor$ from $R$ to $R$
Draw the graph of the function $f(n) =$$\left \lfloor x/2 \right \rfloor$ from $R$ to $R$
Pooja Khatri
157
views
Pooja Khatri
asked
Apr 11, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
7
votes
2
answers
3243
MadeEasy Test Series 2019: Combinatory- Generating Functions
Let $M(x) = \frac{x^{2018}}{(1-x)^{2019}}$ we define $M(x) = \sum_{r=0}^{\infty}a_{r}x^{r}$ ,then $a_{r}$ is equal to- $A)\binom{r}{2019}$ $B)\binom{r}{r+2018}$ $C)\binom{r}{2019-r}$ $D)\binom{r}{r-2018}$
Let $M(x) = \frac{x^{2018}}{(1-x)^{2019}}$we define $M(x) = \sum_{r=0}^{\infty}a_{r}x^{r}$ ,then $a_{r}$ is equal to-$A)\binom{r}{2019}$$B)\binom{r}{r+2018}$$C)\binom{r}{...
register_user_19
950
views
register_user_19
asked
Dec 15, 2018
Combinatory
discrete-mathematics
generating-functions
made-easy-test-series
+
–
0
votes
2
answers
3244
Kenneth Rosen Edition 7 Exercise 1.3 Question 15 (Page No. 34)
Determine whether $(\sim q \wedge (p \rightarrow q)) \rightarrow \sim p$ is a tautology.
Determine whether $(\sim q \wedge (p \rightarrow q)) \rightarrow \sim p$ is a tautology.
Pooja Khatri
827
views
Pooja Khatri
asked
Mar 16, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3245
Kenneth Rosen Edition 7 Exercise 1.6 Question 5 (Page No. 78)
Use rules of inference to show that the hypotheses “Randy works hard,” “If Randy works hard, then he is a dull boy,”and “If Randy is a dull boy, then he will not get the job”imply the conclusion “Randy will not get the job.”
Use rules of inference to show that the hypotheses “Randy works hard,” “If Randy works hard, then he is a dull boy,”and “If Randy is a dull boy, then he will no...
Pooja Khatri
685
views
Pooja Khatri
asked
Mar 19, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
2
answers
3246
Kenneth Rosen Edition 7 Exercise 1.3 Question 34 (Page No. 35)
Find the dual of each of these compound propositions. $p \vee \sim q$ $p \wedge(q \vee (r \wedge T))$ $(p \wedge \sim q) \vee( q \wedge F)$
Find the dual of each of these compound propositions. $p \vee \sim q$$p \wedge(q \vee (r \wedge T))$$(p \wedge \sim q) \vee( q \wedge F)$
Pooja Khatri
841
views
Pooja Khatri
asked
Mar 16, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
propositional-logic
mathematical-logic
+
–
0
votes
0
answers
3247
Fundamentals of Discrete Mathematics
Write the symbolic form? “If the utility cost goes up or the request for the additional funding is denied then a new computer will be purchased if and only if we can show that the current computing facilities are indeed not adequate.”
Write the symbolic form?“If the utility cost goes up or the request for the additional funding is denied then a new computer will be purchased if and only if we can sho...
tourist44
953
views
tourist44
asked
Feb 4, 2019
Mathematical Logic
discrete-mathematics
propositional-logic
+
–
0
votes
0
answers
3248
Kenneth Rosen Edition 7 Exercise 1.4 Question 28 (Page No. 54)
Translate each of these statements into logical expression using predicates, quantifiers, and logical connectives. Something is not in the correct place. All tools are in the correct place and are in excellent condition. Everyone is in ... in excellent condition. One of your tools is not in the correct, but it is in excellent condition.
Translate each of these statements into logical expression using predicates, quantifiers, and logical connectives.Something is not in the correct place.All tools are in t...
Pooja Khatri
670
views
Pooja Khatri
asked
Mar 16, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3249
Kenneth Rosen Edition 7 Exercise 2.3 Question 66 (Page No. 155)
Draw the graph of the function $f(n) =$ $\left \lceil x \right \rceil +\left \lceil x/2 \right \rceil$ from $R$ to $R$
Draw the graph of the function $f(n) =$ $\left \lceil x \right \rceil +\left \lceil x/2 \right \rceil$ from $R$ to $R$
Pooja Khatri
170
views
Pooja Khatri
asked
Apr 11, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3250
Kenneth Rosen Edition 7 Exercise 2.3 Question 52 (Page No. 154)
Show that if $x$ is a real number and $n$ is an integer, then $x\leq n$ if and only if $\left \lceil x \right \rceil \leq n$ $n\leq x$ if and only if $ n\leq \left \lfloor x \right \rfloor $
Show that if $x$ is a real number and $n$ is an integer, then$x\leq n$ if and only if $\left \lceil x \right \rceil \leq n$$n\leq x$ if and only if $ n\leq \left \lfloor ...
Pooja Khatri
179
views
Pooja Khatri
asked
Apr 9, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3251
Kenneth Rosen Edition 7 Exercise 2.3 Question 24 (Page No. 153)
Let $f: R \rightarrow R$ and let $f(x) >0$ for all $x \epsilon R.$ Show that $f(x) $ is strictly increasing if and only if the function $g(x) = 1/f(x)$ is strictly decreasing.
Let $f: R \rightarrow R$ and let $f(x) >0$ for all $x \epsilon R.$ Show that $f(x) $ is strictly increasing if and only if the function $g(x) = 1/f(x)$ is strictly decrea...
Pooja Khatri
185
views
Pooja Khatri
asked
Apr 9, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3252
Kenneth Rosen Edition 7 Exercise 1.5 Question 36 (Page No. 68)
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of a quantifier. Next, express the negation in simple English. (Do not simply use the phrase It ... solved every exercise in this book. No student has solved at least one exercise in every section of this book.
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of a quantifier. Next, express the negation...
Pooja Khatri
776
views
Pooja Khatri
asked
Mar 19, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3253
Kenneth Rosen Edition 7 Exercise 1.4 Question 39 (Page No. 55)
Translate these specifications into English where $F(p)$ is Printer $p$ is out of service, $B(p)$ is Printer $p$ is busy, $L(j )$ is Print job $j$ is lost, and $Q(j )$is Print job $j$ ... $(\forall p B(p) \wedge \forall j Q(j)) \rightarrow \exists j L(j)$
Translate these specifications into English where $F(p)$ is“Printer $p$ is out of service,”$B(p)$ is “Printer $p$ is busy,”$L(j )$ is “Print job $j$ is lost,”...
Pooja Khatri
491
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
1
votes
0
answers
3254
EE gate-2014
Given a system of equations: x+2y+2z=b1 5x+y+3z=b2 (a) the system will have infinitely many solutions for any given b1 and b2 (b) whether or not a solution exists depends on the given b1 and b2
Given a system of equations:x+2y+2z=b15x+y+3z=b2(a) the system will have infinitely many solutions for any given b1 and b2(b) whether or not a solution exists depends on ...
Peach
1.6k
views
Peach
asked
Dec 12, 2018
1
votes
2
answers
3255
fallacy , contradiction and invalid argument are same ?
fallacy , contradiction and invalid argument are same or different
fallacy , contradiction and invalid argument are same or different
Sanjay Sharma
3.2k
views
Sanjay Sharma
asked
Jul 20, 2018
0
votes
0
answers
3256
Kenneth Rosen Edition 7 Exercise 2.2 Question 28 (Page No. 136)
Draw the Venn diagrams for each of these combinations of the sets $A,B,C,$ and $D.$ $(A \cap B) \cup (C \cap D)$ $ \sim A \cup \sim B \cup \sim C \cup \sim D$ $A -(B \cap C \cap D)$
Draw the Venn diagrams for each of these combinations of the sets $A,B,C,$ and $D.$$(A \cap B) \cup (C \cap D)$$ \sim A \cup \sim B \cup \sim C \cup \sim D$$A -(B \cap C ...
Pooja Khatri
213
views
Pooja Khatri
asked
Apr 6, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
1
votes
1
answer
3257
Kenneth Rosen Edition 7 Exercise 1.3 Question 9 (Page No. 35)
Show that each of these conditional statements is a tautology by using truth tables. $(p \wedge q) \rightarrow p $ $ p \rightarrow (p \vee q)$ $\sim p \rightarrow (p \rightarrow q)$ $(p\wedge q)\rightarrow (p \rightarrow q)$ $\sim (p \rightarrow q) \rightarrow p$ $\sim(p \rightarrow p) \rightarrow \sim q$
Show that each of these conditional statements is a tautology by using truth tables.$(p \wedge q) \rightarrow p $$ p \rightarrow (p \vee q)$$\sim p \rightarrow (p \righta...
Pooja Khatri
1.4k
views
Pooja Khatri
asked
Mar 15, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
propositional-logic
mathematical-logic
+
–
0
votes
0
answers
3258
Kenneth Rosen Edition 7 Exercise 2.3 Question 2 (Page No. 152)
Determine whether $f$ is a function from $Z$ to $R$ if $f(n) = +-n.$ $f(n) = \sqrt{n^2+1}.$ $f(n) = 1/(n^2-4).$
Determine whether $f$ is a function from $Z$ to $R$ if$f(n) = +-n.$$f(n) = \sqrt{n^2+1}.$$f(n) = 1/(n^2-4).$
Pooja Khatri
227
views
Pooja Khatri
asked
Apr 9, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
1
votes
0
answers
3259
Kenneth Rosen Edition 7 Exercise 1.7 Question 23 (Page No. 91)
Show that at least ten of any $64$ days chosen must fall on the same day of the week.
Show that at least ten of any $64$ days chosen must fall on the same day of the week.
Pooja Khatri
198
views
Pooja Khatri
asked
Apr 4, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3260
Kenneth Rosen Edition 7 Exercise 2.3 Question 38 (Page No. 154)
Let $f(x) = ax+b$ and $g(x) =cx+d$, where a,b,c, and d ar constants. Determine neccessary and sufficient conditions on the constants a,b,c, and d so that $fog =gof$
Let $f(x) = ax+b$ and $g(x) =cx+d$, where a,b,c, and d ar constants. Determine neccessary and sufficient conditions on the constants a,b,c, and d so that $fog =gof$
Pooja Khatri
171
views
Pooja Khatri
asked
Apr 9, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
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