Question

While solving an equation I get 2 answers, but when I substitute one of the answers the equality doesn't hold?

score 46 · Answer 1 · 2019-01-26 19:28:53

46

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While solving an equation I get 2 answers, but when I substitute one of the answers the equality doesn't hold?

Published on 26 Jan 2019 - 19:28

score 62 · Answer 2 · 2026-03-26 14:20:27

62

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Different results with different methods to same limit of polynomial

Published on 26 Mar 2026 - 14:20

score 62 · Answer 3 · 2019-01-27 00:19:47

62

Views

Please explain why 2x * /2 became 2/2x

Published on 27 Jan 2019 - 0:19

score 900 · Answer 4 · 2019-01-27 12:31:55

900

Views

Radical of $I = (xy-x^3, y^2-yx^2)$

Published on 27 Jan 2019 - 12:31

score 496 · Answer 5 · 2019-01-27 14:59:50

496

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Square-root equation with no solutions

Published on 27 Jan 2019 - 14:59

score 2.9k · Answer 6 · 2019-01-28 03:40:48

2.9k

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What is the value of $\sqrt{49-x^2}+\sqrt{25-x^2}, x \in \mathbb{R}$ if $\sqrt{49-x^2}-\sqrt{25-x^2}=3$

Published on 28 Jan 2019 - 3:40

score 1.5k · Answer 7 · 2019-01-28 08:49:10

1.5k

Views

Proving irrationality of $\sqrt[3]{3}+\sqrt[3]{9}$

Published on 28 Jan 2019 - 8:49

score 83 · Answer 8 · 2019-01-28 09:40:44

83

Views

How to find minimum value

Published on 28 Jan 2019 - 9:40

score 103 · Answer 9 · 2019-01-28 10:34:08

103

Views

Attempting to prove the following inequality

Published on 28 Jan 2019 - 10:34

score 160 · Answer 10 · 2019-01-29 15:01:47

160

Views

Where to start with: $\lim_{n\to\infty} (\sqrt[3]{n^{48}+n} - \sqrt[3]{n^{48}+n^2}) ((n^3 +3)^{12} - (n^4+4n)^9)$

Published on 29 Jan 2019 - 15:01

score 109 · Answer 11 · 2019-01-30 06:49:49

109

Views

Problem when convert $\sqrt{A}+\sqrt{B}=\sqrt{C}+\sqrt{D}$ to A+B=C+D.

Published on 30 Jan 2019 - 6:49

score 60 · Answer 12 · 2026-03-25 13:51:12

60

Views

Solve cubic root equation

Published on 25 Mar 2026 - 13:51

score 132 · Answer 13 · 2026-03-25 09:24:15

132

Views

Is it guaranteed that $\sqrt[3]{a+\sqrt{b}}$ can be denested?

Published on 25 Mar 2026 - 9:24

score 310 · Answer 14 · 2026-03-25 16:00:02

310

Views

Square roots of $j$ and $ε$

Published on 25 Mar 2026 - 16:00

score 288 · Answer 15 · 2026-03-25 10:58:42

288

Views

Tough Irrational Equation highschool

Published on 25 Mar 2026 - 10:58

List Question

While solving an equation I get 2 answers, but when I substitute one of the answers the equality doesn't hold?

Different results with different methods to same limit of polynomial

Please explain why 2x * /2 became 2/2x

Radical of $I = (xy-x^3, y^2-yx^2)$

Square-root equation with no solutions

What is the value of $\sqrt{49-x^2}+\sqrt{25-x^2}, x \in \mathbb{R}$ if $\sqrt{49-x^2}-\sqrt{25-x^2}=3$

Proving irrationality of $\sqrt[3]{3}+\sqrt[3]{9}$

How to find minimum value

Attempting to prove the following inequality

Where to start with: $\lim_{n\to\infty} (\sqrt[3]{n^{48}+n} - \sqrt[3]{n^{48}+n^2}) ((n^3 +3)^{12} - (n^4+4n)^9)$

Problem when convert $\sqrt{A}+\sqrt{B}=\sqrt{C}+\sqrt{D}$ to A+B=C+D.

Solve cubic root equation

Is it guaranteed that $\sqrt[3]{a+\sqrt{b}}$ can be denested?

Square roots of $j$ and $ε$

Tough Irrational Equation highschool

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