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Nick's user avatar
Nick's user avatar
Nick
  • Member for 11 years, 2 months
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  • K-PAX
50 votes

To sum $1+2+3+\cdots$ to $-\frac1{12}$

24 votes

Prove $\sin^2\theta + \cos^2\theta = 1$

18 votes

Why exactly does the distributive property work?

15 votes

Prove $\sin^2\theta + \cos^2\theta = 1$

11 votes
Accepted

What does the Circle really mean?

8 votes
Accepted

Evaluate $\int\frac{\cos^2 x}{1-\sin x }dx$

7 votes
Accepted

Verify Demorgan's Law Algebraically

7 votes

Prove $1 + \tan^2\theta = \sec^2\theta$

7 votes

Find all real zeros of $f(x)=2x^3+10x^2+5x-12$

7 votes
Accepted

How can I prove the convergence of a power-tower?

5 votes

Question about Heart-shaped-graph

5 votes
Accepted

Deriving angle from sin or cos

4 votes
Accepted

how to solve equation with cos

4 votes

Solve $\int (4x+2)\sqrt{x^2+x+1}\,dx$

4 votes

Computing $0.0625^{-2.25}$ without a calculator

4 votes
Accepted

Easiest Method to Evaluate $3\times 3$ Determinants

4 votes
Accepted

How to solve $x\left(\sin x+\cos x\right)=1$?

4 votes
Accepted

derivative of $x\cdot|\sin x|$

3 votes

Prove $1 + \cot^2\theta = \csc^2\theta$

3 votes

Is there a name for the function that gives me the signal of a number only?

3 votes

What's the algebraic property where you can flip the fractions in an equation?

3 votes
Accepted

Solving Complex Quadratic equations

2 votes
Accepted

Complicated Percentage Question

2 votes

Why does $-\sec(x) = 1/\cos(x)$?

2 votes

How do you use floor/ceil in math, e.g. how does it work exactly?

2 votes

What is the binomial expansion of this sequence?

2 votes

Partial fraction decomposition of type $1/(x^2+k)$

2 votes

Finding the total differential.

2 votes

Confused about the $\pm$ sign?

2 votes

Divison of Fractions