Question

If $x$ is positive, then why does $\frac{1}{\sqrt{x+1} + \sqrt{x}} = \sqrt{x+1} - \sqrt{x}$?

score 186 · Answer 1 · 2026-03-26 05:16:56

186

Views

If $x$ is positive, then why does $\frac{1}{\sqrt{x+1} + \sqrt{x}} = \sqrt{x+1} - \sqrt{x}$?

Published on 26 Mar 2026 - 5:16

score 1.7k · Answer 2 · 2016-07-24 16:35:57

1.7k

Views

Fraction and Decimal: Reciprocal of x's non-integer

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score 2.9k · Answer 3 · 2026-03-26 12:44:03

2.9k

Views

Converting repeating decimal in base b to a fraction the same base

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score 76 · Answer 4 · 2026-03-28 03:34:51

76

Views

What do you think it means when I ask for a 0.5% transaction fee?

Published on 28 Mar 2026 - 3:34

score 208 · Answer 5 · 2026-03-29 20:50:11

208

Views

Number theory problem, fractions and gcd

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score 89 · Answer 6 · 2016-07-26 16:42:00

89

Views

At what $a$ is $\lim_{x\to0}\frac{e^{ax}-e^x-x}{x^2}$ finite? What is that limit?

Published on 26 Jul 2016 - 16:42

score 81 · Answer 7 · 2016-07-27 08:16:01

81

Views

Simplifying square numbers in a fraction (elementary school lol)

Published on 27 Jul 2016 - 8:16

score 76 · Answer 8 · 2016-07-28 09:32:46

76

Views

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score 476 · Answer 9 · 2026-03-25 19:10:43

476

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score 227 · Answer 10 · 2026-03-25 23:36:17

227

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score 4.6k · Answer 11 · 2016-07-29 14:33:15

4.6k

Views

Simplify $\frac{\frac{x+3}{x-6-2}}{\frac{x+3}{x-6+8}}$

Published on 29 Jul 2016 - 14:33

score 327 · Answer 12 · 2016-07-29 14:54:08

327

Views

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Published on 29 Jul 2016 - 14:54

score 5.4k · Answer 13 · 2016-07-30 00:20:15

5.4k

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Published on 30 Jul 2016 - 0:20

score 1.9k · Answer 14 · 2016-08-01 04:24:22

1.9k

Views

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Published on 01 Aug 2016 - 4:24

score 383 · Answer 15 · 2016-08-01 22:47:11

383

Views

Fraction of zeros

Published on 01 Aug 2016 - 22:47

List Question

If $x$ is positive, then why does $\frac{1}{\sqrt{x+1} + \sqrt{x}} = \sqrt{x+1} - \sqrt{x}$?

Fraction and Decimal: Reciprocal of x's non-integer

Converting repeating decimal in base b to a fraction the same base

What do you think it means when I ask for a 0.5% transaction fee?

Number theory problem, fractions and gcd

At what $a$ is $\lim_{x\to0}\frac{e^{ax}-e^x-x}{x^2}$ finite? What is that limit?

Simplifying square numbers in a fraction (elementary school lol)

Help with simplification of a rational expression (with fractional powers)

Simplifying this fraction in a different base

Inequality Challenge with $a+b+c=3$

Simplify $\frac{\frac{x+3}{x-6-2}}{\frac{x+3}{x-6+8}}$

How to solve complex fractions?

Quadratic Equation but with Fractional Powers

Determine fraction of inch from decimal

Fraction of zeros

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