166 reputation
7
bio website
location
age
visits member for 1 year, 5 months
seen Jun 27 at 0:55

A 2nd year Computer Eng student.


Jun
17
comment Derivation of the formula for the vertex of a Parabola
+1 for the "visual" solution. I didn't realize you were talking about the derivative until you derived it.
Jun
17
comment Why are higher-degree polynomial equations more difficult to solve?
@Mathemert here is a good algebraic derivation: purplemath.com/modules/sqrvertx2.htm
May
9
suggested suggested edit on use the fact that $\tan 2x=\sin2x \ /\cos2x$ to prove that $\tan 2x=2\tan x/(1-\tan^2x)$
May
9
comment Discrete Math Proofs, Partial Orders and Equivalence Relations
Number 3 is trivial. HINT: Go back to your definitions in combinatorics
May
8
revised Solve $85x \equiv 34 \pmod{153}$
added 69 characters in body
May
8
revised Solve $85x \equiv 34 \pmod{153}$
added 69 characters in body
May
8
answered Solve $85x \equiv 34 \pmod{153}$
May
7
comment Permutation Combination
Hint: Try a smaller domain $C = \{(i, j)|i, j \in \mathbb Z,\; 0 ≤ i, j ≤ 2\}$. find a pattern/formula then apply to the question.
May
7
comment Permutation Combination
What have you tried so far? Where are you stuck?
May
6
comment Formula for Modulo
What the modulo symbol means is when you divide x by y what is the remainder? so When you have 3%2 this means what is the remainder when you have 3/2. Of course the remainder is 1
May
6
comment Last Two digits of
you have to find x $\equiv$ 14^14^14 (mod 100). And you are correct the last digit is 6, but whats the second last digit?
May
5
comment Confusion regarding Quadratic equations and RHS = 0
@user108104 I do understand your query, I was just trying to answer your question why is it that 2^x - 3^y and 2^x + 3^y have to be integers?. To your actual question, there is a huge difference between the two things you are comparing. One is a quadratic equation with a single variable,the other is an exponential equation with 2 different variables. They cannot be solved the same way.
May
5
comment Confusion regarding Quadratic equations and RHS = 0
this means that $2^x - 3^y$ and $2^x + 3^y$ can be any of {-11, -5, -1, 1, 5, 11} as long as their product = 55.
May
5
comment Confusion regarding Quadratic equations and RHS = 0
If the domain is not integers but reals, you will have an infinite number of solutions. If the domain is integers you have a finite number of solutions namely 5*11, -1*-55,-5*-11 and 1*55. There are no other integers that you can multiply which will give you 55.
May
5
comment Number of connections for a graph
Let me rephrase question 2: What is the probability of having one vertex with degree 2 and all the other vertices with a max degree of 1?
May
5
comment Number of connections for a graph
I might have a solution if you can help me figure out how many ways there are to connect upto 9 vertices with a degree of maximum 1 with a 70% chance of an edge
May
5
comment Calculate Interest
What have you tried? Show us your work
May
5
revised How to solve $\dfrac{7x}{8}+4-\dfrac{2x}{3}=4x-3$?
added 240 characters in body
May
5
answered How to solve $\dfrac{7x}{8}+4-\dfrac{2x}{3}=4x-3$?
May
5
comment Number of connections for a graph
This assumes and counts the possibilities that another two vertices (not A,B, and C) can still have one common friend. +1 Since it is technically a correct answer and OP hasn't clarified Q2