calyne
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Questions Asked

calyne:
Group Title
Suppose that a pizza parlor has a special price for 4 pizzas. How many ways can 4 pizzas be selected?
This question is based on the prev…
 updated 3 days ago
 No Medals Yet
Mathematics

calyne:
Group Title
How many strings can be formed by ordering the letters ABCDE such that A appears before D?
 updated 3 days ago
 2 replies
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Mathematics

calyne:
Group Title
Solve the recurrence relation \(2a_n = 7a_{n1}  3a_{n2}; a_0 = a_1 = 1 \) please see here for more info http://math.stackexchange.com/que…
 updated 3 days ago
 30 replies
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Mathematics

calyne:
Group Title
Solve the recurrence relation \(2a_n = 7a_{n1}  3a_{n2}; a_0 = a_1 = 1 \)
 updated 3 days ago
 2 replies
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Mathematics

calyne:
Group Title
Solve the recurrence relation: \(a_n = 6a_{n1}  8a_{n2}; a_0 = 1, a_1 = 0 \)
 updated 4 days ago
 7 replies
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Mathematics

calyne:
Group Title
A committee composed of Mo, Ty, Ma, and Le is to select a president and secretary. How many selections are there in which Ty is president or…
 updated 5 days ago
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Mathematics

calyne:
Group Title
Solve the recurrence relation \(a_n = 2^na_{n1}\) with \(a_0 = 1\)
 updated 5 days ago
 6 replies
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Mathematics

calyne:
Group Title
Solve the recurrence relation \(a_n = a_{n1} + n\) where \(a_0 = 0\) how to do this? First few values are (1,1), (2,3), (3,6), (4,10)... Is…
 updated 5 days ago
 22 replies
 2 Medals
Mathematics

calyne:
Group Title
Solve the singleterm recurrence relation with variable coefficient: \(a_n = 2na_{n1}; a_0 = 1\). I found \(a_1 = 2, a_2 = 8, a_3 = 48\), b…
 updated 5 days ago
 5 replies
 1 Medal
Mathematics

calyne:
Group Title
Prove recurrence relation solution by induction:
Initial recurrence relation:
…
 updated 13 days ago
 18 replies
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Mathematics

calyne:
Group Title
Solve the recurrence relation using iteration:
$$a_n = a_{n1} + 1 + 2^{n1}\\
…
 updated 13 days ago
 8 replies
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Mathematics

calyne:
Group Title
Constructing equivalence classes?...
Define relation R as follows: xRy if x and y are bit strings with x >= 2 and y >= 2 such that x an…
 updated 13 days ago
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Mathematics

calyne:
Group Title
How to get the logarithm of both sides of this equation?
 updated 15 days ago
 7 replies
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Mathematics

calyne:
Group Title
How is x/(3^n) + y/(3^n) = z/(3^{n1}) in the following equation?
\[ a_{n}=\frac{6}{3^n}+\frac{9n}{3^n}=\frac{2+3n}{3^{n1}} \]
 updated 15 days ago
 4 replies
 2 Medals
Mathematics

calyne:
Group Title
Solve the recurrence relation:
 updated 16 days ago
 27 replies
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Mathematics

calyne:
Group Title
Solve the linear homogenous recurrence relation with constant coefficients:
 updated 16 days ago
 4 replies
 1 Medal
Mathematics

calyne:
Group Title
Recurrence relations: Given this formula for Catalan numbers: sigma(n, k=1)( C[sub(k1)] C[sub(nk)] ), C[sub(0)] = 1 = C[sub(1)], C[sub(2)]…
 updated 16 days ago
 21 replies
 No Medals Yet
Mathematics

calyne:
Group Title
Discrete math: Someone invests $3,000 at 12% annual interest, compounded quarterly. Let A[sub(n)] represent the amount after n years.
Fi…
 updated 19 days ago
 48 replies
 2 Medals
Mathematics

calyne:
Group Title
[Discrete math/equivalence relations:] R is a reflexive relation on X, such that for all x, y, z in X, if xRy and yRz, then zRx. Prove that …
 updated 28 days ago
 7 replies
 2 Medals
Mathematics

calyne:
Group Title
Prove by contradiction that there is no rational number r such that r^3 + r + 1 = 0.
Assume r^3 + r + 1 = 0.
…
 updated one month ago
 59 replies
 3 Medals
Mathematics

calyne:
Group Title
How to get from
5(2^(n1) + 4 * 3^(n1))  6(2^(n2) + 4 * 3^(n2))
to…
 updated one month ago
 27 replies
 No Medals Yet
Mathematics

calyne:
Group Title
Discrete Math: f(x) = x/(1+x^2). Determine whether f is onetoone, onto, or both, with domain & codomain = reals. Prove your answer.
 updated 2 months ago
 1 reply
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Mathematics

calyne:
Group Title
Discrete Math/Sets: Let X = {{1},{1,2}}. Construct P(X).
 updated 3 months ago
 2 replies
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Mathematics

calyne:
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Discrete Math: Nested Quantifiers.
Write the negation of ExAxP(x,y) in words and symbolically (where E = existential qualifier and A = univ…
 updated 3 months ago
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Mathematics

calyne:
Group Title
Let X = {1,2}, Y = {a}, and Z = {α,β}. What is Y × X × Y × Z = ?
 updated 3 months ago
 8 replies
 2 Medals
Mathematics

calyne:
Group Title
[Discrete math/sets:]
universe = 151x…
 updated 3 months ago
 7 replies
 2 Medals
Mathematics

calyne:
Group Title
Discrete math/sets: Out of a group of 191 students, 10 are taking French, business, and music; 36 are taking French and business; 20 are tak…
 updated 3 months ago
 21 replies
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Mathematics

calyne:
Group Title
A = { x  x^2  4x + 4 = 1 }, B = { 1, 3 }. Show that A = B.
 updated 3 months ago
 4 replies
 2 Medals
Mathematics

calyne:
Group Title
A = { 1, 2, 3 }, B = { n  n is a positive integer and n^2 < 10 }. Show that A = B.
I can see it, but how am I supposed to show it..?
 updated 3 months ago
 6 replies
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Mathematics

calyne:
Group Title
In Igor Stravinsky's Rite of Spring, the Omens/Dances and Rituals of Abduction (parts 2 & 3)  which of the following descriptions apply?…
 updated 6 months ago
 2 replies
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Mathematics
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