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Mark Pineau
  • Member for 5 years, 1 month
  • Last seen more than a month ago
  • Canada
16 votes
Accepted

Is it possible when multiplying two polynomials that, after collecting similar terms, all terms vanish?

5 votes

Integrate: $\int (x^2+a^2)^{-3/2} \cdot dx$

4 votes
Accepted

How does $e^{-j\pi n}$ become $(-1)^n$

4 votes
Accepted

Cauchy sequence of real numbers

4 votes

Find the value of $(\log_{a}b + 1)(\log_{b}c + 1)(\log_{c}a+1)$ if $\log_{b}a+\log_{c}b+\log_{a}c=13$ and $\log_{a}b+\log_{b}c+\log_{c}a=8$

3 votes
Accepted

Solve inequality logarithm

3 votes
Accepted

Proving $H$ is a subgroup of $GL(2,\Bbb{R})$

2 votes

Area of a circle, using $2$ triangular pyramids?

2 votes
Accepted

Math Subject exam 9768 Q.4

2 votes

Intuition of units: 6 chocolates $\div$ 2 friends = 6 $\times \frac 1 2$ units of what?

2 votes
Accepted

proving one lim with multiplied terms is two lims of the terms multiplied

2 votes

understandin the term logarithm and log.

2 votes
Accepted

If $f: [a,b] \rightarrow \Bbb R$ is bounded and $c \in \Bbb R_+$. Show that for any partition $\{x_o,...,x_n\}$ of $[a,b]$ that $U(P,cf)= cU(P,f)$.

2 votes

Prove $\lvert\int_a^bf \cdot g\rvert \le (\int_a^bf^2)^{1/2} \cdot (\int_a^bg^2)^{1/2}$

2 votes
Accepted

Interval of $x$ for a $7^{\text{th}}$ degree polynomial

2 votes

Show that the sequence {$a_n$}, such that $a_1 =4$ and $a_{n+1}=3-{{2}\over\ a_n}$ is convergent to 2.

1 vote

Continuity and limits at end point of interval

1 vote
Accepted

Limit for some general variable

1 vote

How can I show without induction that $n^3\geq 3n^2$ for $n\geq3$?

1 vote

lim $\frac{10^n}{n!}$ as $n \rightarrow \infty$

1 vote
Accepted

Simplify expression, algebra

1 vote
Accepted

Analysis Integrable Function

1 vote
Accepted

Sketching linear graphs

1 vote
Accepted

Integration: $\int \frac {\sin \sqrt {x}}{\sqrt {x}} \,dx$

1 vote

Direct Proof Discrete Math

1 vote
Accepted

Plot of the function $ f(x) = x/(x^2-1) $?

1 vote
Accepted

Fibonacci induction problem gone wrong!

1 vote

Find the interval on which the function is increasing

1 vote
Accepted

Find a constant between these numbers

1 vote
Accepted

Hom from domain to field is necessarily injective?