Leonard Blackburn's user avatar
Leonard Blackburn's user avatar
Leonard Blackburn's user avatar
Leonard Blackburn
  • Member for 6 years, 1 month
  • Last seen more than a month ago
  • Champaign, IL, United States
2 votes

Definition of General Associativity for binary operations

1 vote

Proving Correctness of Definition of Magnitude of Vectors in n-dimensions

1 vote
Accepted

Epsilon delta proof $\lim_{x\to 3}\sqrt{3-x}=0$

1 vote

Finding the equation of a tangent

1 vote
Accepted

Finding the ratio of numbers of ways of selecting at least one defective disc to number of ways of selecting no defectives

1 vote
Accepted

How can I find the inverse of $f(x) = 7 + 5x^3 + x^7$?

1 vote

Arithmetic mean is to addition as Harmonic mean is to ...?

1 vote

Calculate: $\iint_D{dxdy} \text{ from the region: } D = \{(x,y) \in R^2 : 0 \le y \le \frac{3}{4}x,\ x^2+y^2\le25 \}$

1 vote
Accepted

What is the cross-sectional area and volume of this object?

1 vote

Probability test question

1 vote

solve $\lim_{x \to -\infty} (x +\sqrt{x^2+2x})$.

0 votes
Accepted

equality of plane sets

0 votes

Computing $\cos(A+B)$ in a triangle