Question

If the codomain of the following function is R , is the function surjective?

score 33 · Answer 1 · 2026-04-13 11:38:22

33

Views

If the codomain of the following function is R , is the function surjective?

Published on 13 Apr 2026 - 11:38

score 197 · Answer 2 · 2026-04-15 18:21:36

197

Views

Describe these functions

Published on 15 Apr 2026 - 18:21

score 757 · Answer 3 · 2026-04-12 07:50:19

757

Views

Proof that (S(X),$\circ$) is a group.

Published on 12 Apr 2026 - 7:50

score 54 · Answer 4 · 2026-04-08 17:12:40

54

Views

Its all about functions

Published on 08 Apr 2026 - 17:12

score 57 · Answer 5 · 2026-04-16 07:25:38

57

Views

If $f(x)$ is the square root of the number that is $2$ more than $x,$ what is the value of $f(7) - f(-1)$?

Published on 16 Apr 2026 - 7:25

score 4.5k · Answer 6 · 2026-04-16 02:50:13

4.5k

Views

For which of the following functions is $f(a+b) = f(a) + f(b)$?

Published on 16 Apr 2026 - 2:50

score 113 · Answer 7 · 2026-04-22 10:35:00

113

Views

Why is this function $h(x)$ invalid?

Published on 22 Apr 2026 - 10:35

score 59 · Answer 8 · 2026-04-17 09:21:05

59

Views

If $f\circ g$ is $"1-1"$ then show that $g$ is $"1-1"$ and more

Published on 17 Apr 2026 - 9:21

score 149 · Answer 9 · 2026-04-09 21:25:06

149

Views

Non-orthogonal alternative to sinc function in 2 dimensions

Published on 09 Apr 2026 - 21:25

score 33 · Answer 10 · 2026-04-16 10:10:14

33

Views

Why aren't $z_1 = f(xy)$ and $z_2 = f(x/y)$ multivariable?

Published on 16 Apr 2026 - 10:10

score 1.6k · Answer 11 · 2026-04-13 04:18:55

1.6k

Views

Is there a function that gives unique values when a unique sequence of numbers is given as input?

Published on 13 Apr 2026 - 4:18

score 352 · Answer 12 · 2026-04-15 21:33:11

352

Views

Looking for all strictly concave functions unbounded in $\mathbb{R}^+$

Published on 15 Apr 2026 - 21:33

score 3.3k · Answer 13 · 2026-04-13 05:59:22

3.3k

Views

The function $f(x)=\tan^{-1}(x)$ is not uniformly continuous on $\Bbb{R}$

Published on 13 Apr 2026 - 5:59

score 66 · Answer 14 · 2026-04-15 14:52:29

66

Views

Possible explanation why roots of $f(x)$ and $g(x)$ are very similar

Published on 15 Apr 2026 - 14:52

score 52 · Answer 15 · 2026-04-23 11:44:35

52

Views

find the sign of $f$ from a given inequallity

Published on 23 Apr 2026 - 11:44

List Question

If the codomain of the following function is R , is the function surjective?

Describe these functions

Proof that (S(X),$\circ$) is a group.

Its all about functions

If $f(x)$ is the square root of the number that is $2$ more than $x,$ what is the value of $f(7) - f(-1)$?

For which of the following functions is $f(a+b) = f(a) + f(b)$?

Why is this function $h(x)$ invalid?

If $f\circ g$ is $"1-1"$ then show that $g$ is $"1-1"$ and more

Non-orthogonal alternative to sinc function in 2 dimensions

Why aren't $z_1 = f(xy)$ and $z_2 = f(x/y)$ multivariable?

Is there a function that gives unique values when a unique sequence of numbers is given as input?

Looking for all strictly concave functions unbounded in $\mathbb{R}^+$

The function $f(x)=\tan^{-1}(x)$ is not uniformly continuous on $\Bbb{R}$

Possible explanation why roots of $f(x)$ and $g(x)$ are very similar

find the sign of $f$ from a given inequallity

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