My Math Forum  

Go Back   My Math Forum > College Math Forum > Real Analysis

Real Analysis Real Analysis Math Forum


Reply
 
LinkBack Thread Tools Display Modes
April 30th, 2012, 08:49 PM   #1
Newbie
 
Joined: Apr 2012

Posts: 1
Thanks: 0

amplitude of a sinusoid

I *think* this is the correct place to put this question. But here goes:

I'm having some troubles determining the amplitude/magnitude of the following equation.


Since each part is at a different frequency, i cannot sum the magnitudes of each part.

I have also thought about using variations of the double/triple angle formulae and some basic trigonometric identities, so that I can write the equation under a single frequency, but by doing so, I am introducing some higher order terms, which seem to negate the ability to sum the amplitudes together.

For example, the term with would look like


I suppose another method would be to plot the first equation and then record the amplitude, but i would like a more generalised approach to solve this problem. All input is welcome and appreciated.
suzuki is offline  
 
Reply

  My Math Forum > College Math Forum > Real Analysis

Tags
amplitude, sinusoid



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Period and Amplitude for a trig word problem. joshuahpm Trigonometry 1 September 18th, 2013 05:03 PM
Sinusoid Question reaper Algebra 2 March 12th, 2012 07:35 PM
Determine Period, Amplitude and Phase Shift jatt-rockz Algebra 1 November 24th, 2011 10:31 AM
Determining the maximum amplitude bakslashr Algebra 0 May 17th, 2007 07:57 PM





Copyright © 2018 My Math Forum. All rights reserved.