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nathan.j.mcdougall
  • Member for 9 years, 7 months
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44 votes
Accepted

Why aren't these negative numbers solutions for radical equations?

16 votes

Explain $x^{x^{x^{{\cdots}}}} = \,\,3$

6 votes

After adding $10$ cups of water to a container $1/8$ full, it becomes $3/4$ full. What is the volume of the container?

4 votes
Accepted

Find the coefficient of $x^4$ in the expansion of $(1 + 3x + 2x^3)^{12}$?

3 votes
Accepted

Why do we treat differential notation as a fraction in u-substitution method

3 votes

How to find the derivative of $\frac{d\theta}{d\cos \theta}$?

3 votes
Accepted

Understand a definition

3 votes
Accepted

Show me how this equation is true $\dfrac {a}{b}=\dfrac {b}{~\frac{a}{2}~}=\dfrac {2b}{a}$?

2 votes
Accepted

Find C such that y=lnx+C is tangent to e^x

2 votes

Proving the combinatorial identity ${n \choose k} = {n-2\choose k-2} + 2{n-2\choose k-1} + {n-2\choose k}$

2 votes

Solving $z^2=\bar z$

2 votes
Accepted

Is there any way to simplify Cos( 2/3 ArcTan(x) )?

2 votes

How to integrate with respect to $x^2$?

2 votes

Circle sandwiched between two squares problem

2 votes

derivative of $e^{\ln x^2}-3x^7$

1 vote
Accepted

Can we find four reals $x,y,a,b$ such that $z=(x-a)^2+(y-b)^2$

1 vote

Parallelogram and triangles

1 vote

Confused about the way derivative question is shown

1 vote
Accepted

Assignment with pair-wise constraints

1 vote
Accepted

What kind of knapsack/bin-packing problem is this?

1 vote

Formulating the dual of an exponential cone optimization problem

1 vote

Solve matrix $2$-norm problem with diagonal matrix constraint

1 vote

Showing equivalence of set of solutions of two linear programming

1 vote
Accepted

Multiple loan repayment => Optimization problem

1 vote
Accepted

~Conditional Probability~ rate(A|B) and rate(not A|B)

1 vote
Accepted

Is this a linear constraint?

1 vote

Potentially unusual variant of least squares minimization

1 vote
Accepted

algebraic expression of Matrix product

1 vote
Accepted

Linearization of a max function

1 vote
Accepted

Does $\sum^\infty_{j=a}{\frac{x^{j+(j+b)}}{j!(j+b)!}}$ converge to some function?