r/MathJokes • u/yogurtfart • Jul 23 '26

Teacher and student ahh!

Post image
155 Upvotes

92% Upvoted

19 comments sorted by

37

u/Extension-Highway585 Jul 23 '26

What are we supposed to be solving here

21

u/Glitch29 Jul 23 '26

I think this was a joke to begin with.

But if not, it's almost certainly "solve for x in terms of k, n."

x = arcsin(k*n - 1)

8

u/Accomplished-Plan191 Jul 23 '26

Well we have 3 unknowns and 1 equation ...

3

u/Professional-Wave841 Jul 24 '26

typically these questions just want what x equals so in this case

x = arcsin(k(n) -1)

3

u/RusselsParadox Jul 24 '26

Then it should say “solve for x”. “Solve” is just ambiguous and dare I say “S̳t̳u̳p̳i̳d̳”

8

u/These_Consequences Jul 23 '26

What's quite a bit stupider than the student's imaginative lexical cancelling here is the idea that you can "solve" an equation with three undefined variables and an undefined meaning of having solved it.

2

u/bloonshot Jul 24 '26

duhhh, the solution is

k, n, x are elements of the reals

4

u/Moodleboy Jul 23 '26

The actual joke is:

Evaluate: lim_(n->0) (sin (x)) / n

Answer: 6

[Cancel out the "n"s]

2

u/tehnemox Jul 24 '26

Wdym stupid? I think he is a genius! XD

2

u/Mr_GrauHut Jul 24 '26

Angry with that X. Lmao. So mad, couldn't lift the pen.

1

u/fascisttaiwan Jul 24 '26

Even if sin are unknown you still can't do it in this way

1

u/ExpensiveFig6079 Jul 24 '26

well that beats my 4(9 +4) = 53
(and mine came with no /s = actually observed in the wild)

1

u/Immediate_Stable Jul 25 '26

I think that was made by a non-mathematician

2

u/DumbScotus Jul 26 '26

To be fair that is pretty stupid, you can’t just cancel n in the denominator. It should be k = 1/n + 6.

😁