Reputation
13,558
Next privilege 15,000 Rep.
Protect questions
2 16 38
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~273k people reached

 84 Why is $\log(\sqrt{x^2+1}+x)$ odd? 25 Factor $x^4 - 11x^2y^2 + y^4$ 21 How to solve $y = \sqrt{k\sqrt{k\sqrt{k \sqrt{k\sqrt{\dots}}}}}$? 15 Does $\sqrt{a \sqrt{a \sqrt{a}}}…=\sqrt{b \sqrt{b \sqrt{b}}}… \implies a=b$? 13 Evaluate $\int {2x\over x^2-1}dx$

### Reputation (13,558)

 +45 if $x \neq 0$ and $x = \sqrt{4xy - 4y^2}$, then how does expressing $x$ in terms of $y$ mean $x = 2y$? +10 Finding real and imaginary part of exponential function +10 How to find the limit of $\frac{1−\cos 5x}{x^2}$ as $x\to 0$? +10 The generating function for the Fibonacci numbers

### Questions (29)

 10 Combinatorial proof 9 How to transform this infinite sum 8 Sword, pizza and watermelon 7 Integer partition identity 6 Sailors, monkey and coconuts

### Tags (119)

 205 algebra-precalculus × 116 70 trigonometry × 47 183 calculus × 97 58 summation × 33 136 limits × 51 48 sequences-and-series × 38 112 functions × 17 46 induction × 26 91 combinatorics × 68 46 integration × 25

### Accounts (6)

 Mathematics 13,558 rep 21638 TeX - LaTeX 123 rep 14 Stack Overflow 101 rep 1 Software Quality Assurance & Testing 101 rep 1 Mathematica 101 rep