Question

Find the Pre-Image of $\ q\ $, where $\ q^{-1}(S)\ $, where $\ S=f^{-1}([0,+\infty))$

score 158 · Answer 1 · 2026-04-15 01:28:48

158

Views

Find the Pre-Image of $\ q\ $, where $\ q^{-1}(S)\ $, where $\ S=f^{-1}([0,+\infty))$

Published on 15 Apr 2026 - 1:28

score 682 · Answer 2 · 2026-04-24 12:59:12

682

Views

$|A| \leq |B|$ iff there is an injective map from A to B

Published on 24 Apr 2026 - 12:59

score 80 · Answer 3 · 2026-04-13 23:42:15

80

Views

How can we find such relations/maps?

Published on 13 Apr 2026 - 23:42

score 42 · Answer 4 · 2026-04-12 14:04:17

42

Views

Understanding shifting of matches in a circle

Published on 12 Apr 2026 - 14:04

score 144 · Answer 5 · 2026-04-15 16:13:01

144

Views

Explicit expression for $b$ as a function of $a$ where $\log_b a = (a/b)^{1/2}$

Published on 15 Apr 2026 - 16:13

score 35 · Answer 6 · 2026-04-08 21:50:48

35

Views

Can I define a function randomly

Published on 08 Apr 2026 - 21:50

score 287 · Answer 7 · 2026-04-17 22:36:18

287

Views

Why is it incorrect to define an "impure" function?

Published on 17 Apr 2026 - 22:36

score 2.2k · Answer 8 · 2026-04-13 16:30:44

2.2k

Views

How to calculate the total number of functions that possess a specific domain and codomain?

Published on 13 Apr 2026 - 16:30

score 84 · Answer 9 · 2026-04-16 12:20:26

84

Views

Is the function $f(x)=\lfloor\sin(\ln(x+2)\rfloor$ differentiable at $x=0$?

Published on 16 Apr 2026 - 12:20

score 393 · Answer 10 · 2026-04-14 08:21:58

393

Views

Which values of $(a,b)$ make a function bijective/surjective/injective.

Published on 14 Apr 2026 - 8:21

score 2k · Answer 11 · 2026-04-14 19:09:03

2k

Views

"exponential something" : what is the name of that asymptotic exponential function?

Published on 14 Apr 2026 - 19:09

score 44 · Answer 12 · 2026-04-13 14:21:53

44

Views

Difficulty understanding this example that proves a function is one-to-one

Published on 13 Apr 2026 - 14:21

score 106 · Answer 13 · 2026-04-15 13:44:43

106

Views

Conditions on the Pre-Image

Published on 15 Apr 2026 - 13:44

score 447 · Answer 14 · 2026-04-13 15:19:25

447

Views

When is a function strictly increasing?

Published on 13 Apr 2026 - 15:19

score 3.8k · Answer 15 · 2026-04-09 06:08:23

3.8k

Views

How does squaring both sides of an equation lead to extraneous solutions?

Published on 09 Apr 2026 - 6:08

List Question

Find the Pre-Image of $\ q\ $, where $\ q^{-1}(S)\ $, where $\ S=f^{-1}([0,+\infty))$

$|A| \leq |B|$ iff there is an injective map from A to B

How can we find such relations/maps?

Understanding shifting of matches in a circle

Explicit expression for $b$ as a function of $a$ where $\log_b a = (a/b)^{1/2}$

Can I define a function randomly

Why is it incorrect to define an "impure" function?

How to calculate the total number of functions that possess a specific domain and codomain?

Is the function $f(x)=\lfloor\sin(\ln(x+2)\rfloor$ differentiable at $x=0$?

Which values of $(a,b)$ make a function bijective/surjective/injective.

"exponential something" : what is the name of that asymptotic exponential function?

Difficulty understanding this example that proves a function is one-to-one

Conditions on the Pre-Image

When is a function strictly increasing?

How does squaring both sides of an equation lead to extraneous solutions?

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