Question

Solving this system of equations without a CAS: $4=a+c$, $5=d+ac+b$, $4=ad+bc$, $4=bd$

score 77 · Answer 1 · 2026-04-16 21:18:48

77

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Solving this system of equations without a CAS: $4=a+c$, $5=d+ac+b$, $4=ad+bc$, $4=bd$

Published on 16 Apr 2026 - 21:18

score 58 · Answer 2 · 2026-04-16 03:49:16

58

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For what values for parameter b will x have real results? $\frac{2x}{x+3}+\frac{bx-2x}{x^2-9}=\frac{x-1}{x-3}$

Published on 16 Apr 2026 - 3:49

score 78 · Answer 3 · 2026-04-11 00:24:34

78

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Find the limit of the function using l'Hopital's Rule?

Published on 11 Apr 2026 - 0:24

score 53 · Answer 4 · 2026-04-17 02:09:41

53

Views

Values for p so inequality is right for every x. $-9< \frac{3x^2+px-6}{x^2-x+1} < 6 $

Published on 17 Apr 2026 - 2:09

score 110 · Answer 5 · 2026-05-10 14:56:35

110

Views

Calculating the limit of $(x-1)e^{1/x}-x$

Published on 10 May 2026 - 14:56

score 73 · Answer 6 · 2026-05-10 15:47:52

73

Views

Prove that $\forall n \in \Bbb{N}, 1 <n, \left( 1 + \frac{1}{n} \right)^n < \sum_{i=0}^n \frac{1}{i!}$

Published on 10 May 2026 - 15:47

score 81 · Answer 7 · 2026-04-30 08:55:44

81

Views

Fractions everywhere

Published on 30 Apr 2026 - 8:55

score 185 · Answer 8 · 2026-05-10 13:51:17

185

Views

Show that $\frac{1}{a^n+b^n+c^n} = \frac{1}{a^n} + \frac{1}{b^n} + \frac{1}{c^n}$

Published on 10 May 2026 - 13:51

score 4.6k · Answer 9 · 2026-04-10 13:57:23

4.6k

Views

Difference between fractions and rational numbers?

Published on 10 Apr 2026 - 13:57

score 63 · Answer 10 · 2026-05-10 20:57:40

63

Views

$ \sum_{t=0}^{N}\left ( \frac{B(t) -C(t)}{(1+Z)^t} \right )=0 $, Solve for $Z$

Published on 10 May 2026 - 20:57

score 373 · Answer 11 · 2026-05-10 23:31:21

373

Views

Formal definition of fraction

Published on 10 May 2026 - 23:31

score 164 · Answer 12 · 2026-05-10 20:57:41

164

Views

Why does the Numerator of the Denominator go to the Denominator?

Published on 10 May 2026 - 20:57

score 70 · Answer 13 · 2026-05-10 12:31:02

70

Views

Find $S_n$ summation.

Published on 10 May 2026 - 12:31

score 68 · Answer 14 · 2026-04-14 08:58:20

68

Views

Find the angles of this triangle.

Published on 14 Apr 2026 - 8:58

score 36 · Answer 15 · 2026-04-11 19:23:28

36

Views

Rational expression in lowest term - question from Euler’s element of algebra

Published on 11 Apr 2026 - 19:23

List Question

Solving this system of equations without a CAS: $4=a+c$, $5=d+ac+b$, $4=ad+bc$, $4=bd$

For what values for parameter b will x have real results? $\frac{2x}{x+3}+\frac{bx-2x}{x^2-9}=\frac{x-1}{x-3}$

Find the limit of the function using l'Hopital's Rule?

Values for p so inequality is right for every x. $-9< \frac{3x^2+px-6}{x^2-x+1} < 6 $

Calculating the limit of $(x-1)e^{1/x}-x$

Prove that $\forall n \in \Bbb{N}, 1 <n, \left( 1 + \frac{1}{n} \right)^n < \sum_{i=0}^n \frac{1}{i!}$

Fractions everywhere

Show that $\frac{1}{a^n+b^n+c^n} = \frac{1}{a^n} + \frac{1}{b^n} + \frac{1}{c^n}$

Difference between fractions and rational numbers?

$ \sum_{t=0}^{N}\left ( \frac{B(t) -C(t)}{(1+Z)^t} \right )=0 $, Solve for $Z$

Formal definition of fraction

Why does the Numerator of the Denominator go to the Denominator?

Find $S_n$ summation.

Find the angles of this triangle.

Rational expression in lowest term - question from Euler’s element of algebra

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