Сan an Irrational number; like e , be equal to a second irrational number, &#x03C0;<!-- π -

Taniyah Estrada

Taniyah Estrada

Answered question

2022-06-26

Сan an Irrational number; like e, be equal to a second irrational number, π, times an integer, then divided by a second rational number? Such as: e = π a b , where a and b are some integers.

Answer & Explanation

robegarj

robegarj

Beginner2022-06-27Added 24 answers

Let x , y be irrational numbers, and a , b be some integers different from 0. Consider:
x y = a b
which is clearly equivalent to your question. If x y is rational, then the answer is yes, you can find some integers a , b as above; otherwise, the answer is no. For instance, let x = 2 , y = 3 2 . Then, you can write:
x = 1 3 y
Regarding this particular case, namely e π , I think it is not yet known whether this number is irrational or not.
Erin Lozano

Erin Lozano

Beginner2022-06-28Added 7 answers

8 = 2 2 .
More generally, any irrational times a rational gives another irrational.

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