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Apr
28
reviewed Approve $\sum_{k=1}^n 1/k - \log n$
Apr
20
reviewed Approve Looking for a Function With Certain Characteristics
Apr
14
reviewed Approve Is $\mathrm{span}\{v_1,v_2,v_3\}=\mathrm{span}\{v_1+v_2,v_1+v_3,v_2+v_3\}$ if $v_1,v_2,v_3\in V$ a vector space over $\mathbb{Z}_2$?
Apr
6
reviewed Approve solving $y=4/x+\sqrt{x+0.2−5x}$
Apr
5
reviewed Approve Calculus 1: Optimization Word Problem - Right Triangle
Mar
30
reviewed Approve How do I do this one?
Mar
20
reviewed Approve discriminant tag wiki excerpt
Mar
20
reviewed Approve discriminant tag wiki
Feb
17
reviewed Approve Cardinality of $X \cup Y$?
Feb
16
reviewed Approve sum and product of roots of polynomials: finding equations for roots
Jan
5
reviewed Leave Open How to differentiate both sides with an independent variable if one doesn't have a formula?
Nov
12
reviewed Approve Associative Property
Nov
12
reviewed Approve An algorithm for arbitrage in currency exchange
Nov
6
reviewed Leave Open Does $\mathbb E(X_1)\geq\mathbb E(X_2)$ imply $\mathbb E(\textbf1_{X_1>1})\geq\mathbb E(\textbf1_{X_2>1})$ for real-valued random variables $X_1,X_2$?
Nov
3
reviewed Approve Defining Equivalence Relations on a Set
Nov
1
reviewed Approve How to find Choose(m, n) mod P for large m and n?
Oct
27
reviewed Approve prove trig equivalence
Oct
26
reviewed Approve Solving (easy) equation
Oct
13
reviewed Approve Solving exponential equation in one variable.
Oct
9
reviewed Approve How do I use the power rule with $4x^2 - 2$?