Question

If $a,b,c$ are in $A.P.$ then prove that $b^2>ac$

score 2.7k · Answer 1 · 2026-03-25 07:48:38

2.7k

Views

If $a,b,c$ are in $A.P.$ then prove that $b^2>ac$

Published on 25 Mar 2026 - 7:48

score 118 · Answer 2 · 2026-04-13 19:04:52

118

Views

If one root of $ax^2 + bx + c$ is double the other, then we must have $ 2b^2 = 9 ac $.

Published on 13 Apr 2026 - 19:04

score 94 · Answer 3 · 2026-04-15 23:54:09

94

Views

$(-x+2)^2=(x-2)^2$ this is true but why?

Published on 15 Apr 2026 - 23:54

score 66 · Answer 4 · 2026-04-11 17:22:31

66

Views

How to find the number of elements between three different sets when there is not a total sum of their elements?

Published on 11 Apr 2026 - 17:22

score 86 · Answer 5 · 2026-04-11 20:54:30

86

Views

Maximum and minimum points

Published on 11 Apr 2026 - 20:54

score 70 · Answer 6 · 2026-04-15 02:04:02

70

Views

"A Cubic Function From the Reals to the Reals is Always Injective": False?

Published on 15 Apr 2026 - 2:04

score 116 · Answer 7 · 2026-04-13 01:35:47

116

Views

Show super noob how to solve simple equation

Published on 13 Apr 2026 - 1:35

score 29 · Answer 8 · 2026-04-10 20:04:02

29

Views

Exact cost per ingredient in a recipe

Published on 10 Apr 2026 - 20:04

score 27 · Answer 9 · 2026-04-16 07:44:55

27

Views

Proving $f_1(x)-f_1(z)=f_2(x)-f_2(z)$ for all $x,z$ implies $f_1=f_2+c$?

Published on 16 Apr 2026 - 7:44

score 40 · Answer 10 · 2026-04-10 01:08:25

40

Views

Circular arc formula in terms of r in polar coordinates

Published on 10 Apr 2026 - 1:08

score 33 · Answer 11 · 2026-04-15 04:30:41

33

Views

Find the Rate of Growth For Each Decade and For Each Month

Published on 15 Apr 2026 - 4:30

score 2.1k · Answer 12 · 2026-04-13 21:37:56

2.1k

Views

Finding the equation for a parabola given two points and the vertex on a line.

Published on 13 Apr 2026 - 21:37

score 31 · Answer 13 · 2026-04-13 19:50:39

31

Views

On Equivalence of Algebraic Expressions

Published on 13 Apr 2026 - 19:50

score 1.4k · Answer 14 · 2026-04-13 17:24:21

1.4k

Views

Prove that $\sin(z) =\frac{e^{iz}-e^{-iz}}{2i} =\sin(x)\cosh(y) +i\cos(x)\sinh(y)$

Published on 13 Apr 2026 - 17:24

score 53 · Answer 15 · 2026-04-13 07:35:46

53

Views

How can I use $\sum_{j=0}^{\infty} z^j=\frac{1}{1-z}$ to find a closed form expression for $\sum_{j=0}^{\infty} jz^j$?

Published on 13 Apr 2026 - 7:35

List Question

If $a,b,c$ are in $A.P.$ then prove that $b^2>ac$

If one root of $ax^2 + bx + c$ is double the other, then we must have $ 2b^2 = 9 ac $.

$(-x+2)^2=(x-2)^2$ this is true but why?

How to find the number of elements between three different sets when there is not a total sum of their elements?

Maximum and minimum points

"A Cubic Function From the Reals to the Reals is Always Injective": False?

Show super noob how to solve simple equation

Exact cost per ingredient in a recipe

Proving $f_1(x)-f_1(z)=f_2(x)-f_2(z)$ for all $x,z$ implies $f_1=f_2+c$?

Circular arc formula in terms of r in polar coordinates

Find the Rate of Growth For Each Decade and For Each Month

Finding the equation for a parabola given two points and the vertex on a line.

On Equivalence of Algebraic Expressions

Prove that $\sin(z) =\frac{e^{iz}-e^{-iz}}{2i} =\sin(x)\cosh(y) +i\cos(x)\sinh(y)$

How can I use $\sum_{j=0}^{\infty} z^j=\frac{1}{1-z}$ to find a closed form expression for $\sum_{j=0}^{\infty} jz^j$?

Trending Questions

Popular # Hahtags

Popular Questions