This is a classical mathematical fallacies. At hindsight, everything looks perfectly fine.

So did you manage to spot the error? It is at line 5, where we divide both sides of the equation by . Now this is mathematical alright, but in this case, it is not! notice that on the account that we started with . And we need to be reminded that we cannot divide anything by zero.

[…] 13. Common Pitfalls in A’levels Math #3 14. Why is anything to the power of 0 always 1? 15. Classical Mathematical Fallacies #1 16. Classical Mathematical Fallacies #2 17. Classical Mathematical Fallacies #3 18. Confusion on […]

[…] 13. Common Pitfalls in A’levels Math #3 14. Why is anything to the power of 0 always 1? 15. Classical Mathematical Fallacies #1 16. Classical Mathematical Fallacies #2 17. Classical Mathematical Fallacies #3 18. Confusion on […]