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 9
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Questions Asked

Its_Sonic:
Group Title
Simplify:
log2(1024n/log2n)
 updated 5 months ago
 14 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Determine the sum of all coefficients in the expansions of (x + y)^8
 updated 7 months ago
 15 replies
 2 Medals
Mathematics

Its_Sonic:
Group Title
Let A = {a,b,c,d}. Give an example of a relation R on A^2 which is reflexive, symmetric, but not transitive.
I'm confused on how to get t…
 updated 7 months ago
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
Let Z5 be the relation of congruence modulo 5. If 1 <= m and n <= 5, We define the product of two classes as [m][n] = [mn]
Explain why [3…
 updated 7 months ago
 4 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Let P1 = (3 4 1 2 5), P2 = (3 5 1 2 5), P3 = (5 1 4 2 3)
They are all permutations. Show that P1 o P2 =/= P2 o P1
…
 updated 7 months ago
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
Let n∈Z+and let
n = \[p _{1}^{k1}p _{2}^{k2}p _{3}^{k3} ... + p _{n}^{kn}\]
…
 updated 7 months ago
 17 replies
 3 Medals
Mathematics

Its_Sonic:
Group Title
Let \[n \in Z ^{+}\] and let
n = \[p _{1}^{k1} + p _{2}^{k2} + p _{3}^{k3} ..... + p _{n}^{kn}\]
…
 updated 7 months ago
 6 replies
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
Prove that:
P(AB) = P(A)  P(B)
…
 updated 7 months ago
 1 reply
 1 Medal
Mathematics

Its_Sonic:
Group Title
Prove that:
P(!A) = P(U)  P(A)
…
 updated 7 months ago
 13 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Prove that: P(A and B) = P(A) and P(B) If it is not true, provide a counterexample. P is a power set
 updated 8 months ago
 4 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Prove that:
P(A and B) = P(A) and P(B)
…
 updated 8 months ago
 1 reply
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
A prof gave 40 students a test of 3 questions. If 10 students didn't answer the first question, 14 didn't answer the second, and 12 didn't a…
 updated 8 months ago
 15 replies
 2 Medals
Mathematics

Its_Sonic:
Group Title
How is A ⊆ B equivalent to A ∩ !B = ∅ and !A U B = U? ! being the bar above the letter representing not because I can't figure out how to …
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
How many terms are there in the expansion (x + y + z)^10?
 updated 8 months ago
 2 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
An ice cream shop sells 30 kinds of ice cream and 3 different kinds of cones. How many ways can a dozen two scoop ice cream cones by ordered…
 updated 8 months ago
 3 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
How do you read in a file from stdin?
I need to include the text file to be read when compiling so I can't hard code a specific file name…
 updated 8 months ago
 4 replies
 2 Medals
Mathematics

Its_Sonic:
Group Title
When using a struct to contain a 2D char array, how do you make the size of the array? (using C)
ex.
…
 updated 9 months ago
 12 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
In how many ways can a person draw 5 cards from a 52 card deck and get:
a. Three aces and a pair
b. Three of a kind and a pair
…
 updated 9 months ago
 11 replies
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
Having trouble returning array pointers from a function. Not sure how exactly to do it properly.
eg.
…
 updated 9 months ago
 9 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
A student claims that 2 + 4 + ...+ 2n = (n+ 2)(n  1) for any integer n >=2 and presents the following proof.
We assume that P(n) : 2 + 4…
 updated 10 months ago
 4 replies
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
If p is false, q and r are true, what is the truth value of the statement below?
(p ^ q) > (r V p)
…
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Identify the error:
Let u,m,n be three integers. If umn and gcd(u,m) = 1 then m = +1 If gcd(u,m) = 1, then 1 = us + mt for some integers …
 updated 11 months ago
 3 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Write in symbolic logic:
Everybody loves somebody.
…
 updated 11 months ago
 10 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Explain why the statement,
for any three integers a,b,c
…
 updated 11 months ago
 6 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
Prove that 2n+1 <= 2^n for n >= 3
By induction:
Proved P(3) is true
…
 updated one year ago
 5 replies
 1 Medal
Mathematics

Its_Sonic:
Group Title
I'm doing an assignment where I have to make a collection in java using a hash table and a BST. I read in a line such as this: add,1234,Igor…
 updated one year ago
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
Write a recursive, nondestructive equals method that determines if one stack is equal to another stack (i.e. they contain the same items in…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
I'm making a LinkedList class and have to make certain methods for it. I don't know quite what to do for this one by the description I'm giv…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
I ran into an error while making a toString method for a linked list of 'a' to 'z'. The result String returned back to the public method onl…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Its_Sonic:
Group Title
How do I implement a Hash Table ADT?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics
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