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Apr
26
answered Monotone Convergence Theorem for nonnegative functions (not quite a decreasing sequence)
Apr
22
answered open\closed and disjoint sets under R2
Apr
19
answered Prove that dim(U + V ) ≤ dim U + dim V .
Apr
13
answered Is this outer measure really regular?
Apr
11
answered How do I show the series $\sum{\frac{1}{\log(n)^{\log(n)}}}$ converges?
Apr
5
answered Prove that the vector space is 3D
Mar
27
answered $\frac{x^{n+1}}{n+1}$ uniformly converge to $0$ or not
Mar
13
answered How to find the basis for Ker($T$) of $T:P_n(R) \rightarrow P_n(R)$ given by differentiation.
Mar
13
answered Mean of a squared random variable
Mar
13
answered You toss a fair die three times. What is the expected value of the largest of the three outcomes?
Mar
11
answered How do I find the set $\bigcup_{k = 2}^{10}A_k$ if $A_k = [k, 2k-1]$
Mar
11
answered Show that a series is not uniformly convergent
Mar
11
answered Limit of a sequence: $a_n \le b_n \le c_n$
Mar
11
answered What does it mean for f([x])=[2x] for a function mapping R/Z to R/Z?
Mar
9
answered Classify each of the following sets as open, closed, or neither
Mar
9
answered If, $\forall n\in\mathbb{N}$, $\lvert x_{n+1} - x_n \lvert\le a^n$ (for $a\in (0,1)$), then $x_n\to x$
Mar
9
answered Converging sequences with real numbers
Mar
9
answered If $K$ is compact in $\mathbb{R}^n$ s. t. $B_r(\vec{x}) \cap K =\{\vec{x}\}$ then $K$ is finite
Mar
9
answered Find a surjective function $f:\mathbb{N}\to \mathbb{Q}$
Mar
9
answered False: if $C$ is closed then closure of interior of $C$ is equal to $C$?