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E to the pi i equals negative one because of a string of properties. Namely logarithmic properties. When you take the natural log of both sides you are able to bring the exponent of pi and i down. And replace the ln of e with 1. When you keep the natural log of negative 1 you get 3.145....i or pi times i. To understand this natural log place you must go back to the original equation E^pi i. When you take the i root of both sides you get e to the pi alone, and have the i root of negative one. By doing this you are just raising negative 1 to the inverse of i, negative i. When you do this you end up with 23.14069263....... because of derivatives. Guess what e to the pi is. you guessed right 23.14069263. This is commonly known as Eulers's identity. If you want the more in depth understanding Google it, or bing whatever you prefer.

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Q: Why does E to the pi i equal negative one?
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Related questions

What is e to the pi i?

negative one.


What is a negative and a positive equal?

A negative e. i. 4X-6=-24


What does e raised to the i times pi equal?

-1. This is a result of Euler's formula.


Is a power a whole number?

Not necessarily. i times pi is not a whole number, and yet e to the power of i times pi is equal to -1.


Pi is equal to 3.14 then what is mc2 equal to?

E=mc2 =0.111x 300,000,000x 300,000,000= 10,000,000,000,000,000 (10 quadrillon) joules.


What is e plus pi plus pi plus pi plus e plus e plus e?

About 20.29791


Is e to the pi rational?

e^pi ~ 23.14069.............., not rational


How can you make rational of i power i?

It is NOT rational, but it IS real.Start with Euler's formula: e^ix = cos(x) + i*sin(x) for all x.When x = pi/2,e^(i*pi/2) = cos(pi/2) + i*sin(pi/2) = 0 + i*1 = ior i = e^(i*pi/2)Raising both sides to the power i givesi^i = e^[i*(i*pi/2)] = e^[i*i*pi/2]and since i*i = -1,i^i = e^(-pi/2) = 0.20788, approx.


How do you manually calculate i to the power of i?

i (taken to be sqrt(-1) for this question) requires that you know a bit about writing complex numbers. i = e^(i*pi/2) so i^i = (e^(i*pi/2))^i which equals e^(i*i*pi/2) since i*i = -1 we get e^(-pi/2) so i^i = e^(-pi/2) which is roughly .207879576


Does transcendental ean it is equal to the ratio of two integers in math?

Absolutely not. Transcendental numbers are such values as e, pi, and root 2


Does a positive integer multiplied by a negative integer equal a negative integer?

All negative integers, when multiplied by a positive integer, or vice versa, will result in a negative integer. I. E. 5*-5=-25


Is pi divided by e rational?

A rational number is able to be represented as a ratio of polynomials. pi/e is a ratio of irrational numbers, neither of which can be represented as a ratio of polynomials, and so I would conclude that pi/e is not rational. But it's a good question, because what if two irrational numbers could cancel out their irrationality, like two negative numbers! A quotient of two irrational numbers can be a rational number. Trivial example 2pi/pi = 2.