My Math Forum simple exponential functions

 Pre-Calculus Pre-Calculus Math Forum

 December 3rd, 2016, 05:24 AM #1 Newbie   Joined: Dec 2016 From: HK Posts: 8 Thanks: 0 simple exponential functions why e^i*pi/4 = 1+i/root2 ? Last edited by hkg277340; December 3rd, 2016 at 05:55 AM.
December 3rd, 2016, 06:00 AM   #2
Math Team

Joined: Jul 2011
From: Texas

Posts: 2,718
Thanks: 1373

Quote:
 Originally Posted by hkg277340 why e^i*pi/4 = 1+i/root2 ?
because ...

$e^{i \theta}=\cos{\theta}+i \sin{\theta}$

 December 3rd, 2016, 09:09 AM #3 Newbie   Joined: Dec 2016 From: HK Posts: 8 Thanks: 0 thank you dude!
December 3rd, 2016, 09:54 AM   #4
Banned Camp

Joined: Jun 2014
From: Earth

Posts: 945
Thanks: 191

Quote:
 Originally Posted by hkg277340 why e^i*pi/4 = 1+i/root2 ?
You are missing grouping symbols. I state that, because your expressions on each side on wrong.

e^(i*pi/4) = (1 + i)/(root2)

or

$\displaystyle e^{i*\pi/4} \ = \ \dfrac{1 + i}{\sqrt{2}}$

 Tags exponential, functions, simple

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Nij Calculus 2 November 25th, 2015 06:20 AM mathbeauty Advanced Statistics 3 August 12th, 2010 01:38 PM JONNNN Algebra 1 June 10th, 2008 08:34 AM M0ns7erS0u1 Calculus 2 December 31st, 1969 04:00 PM Sadlercomfort Abstract Algebra 2 December 31st, 1969 04:00 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top