My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum

LinkBack Thread Tools Display Modes
March 5th, 2014, 07:42 AM   #1
Joined: Mar 2014

Posts: 28
Thanks: 0

simplify this ?2sin(2x+45)

I want to simplify this ?2sin(2x+45), but all I can think of is y=?2sin(2x+45)
and make a graph.. In that case, baseline is 0, ?2 is the amplitude, the period is 180, pitch 45 and starting point is -22.5 (I might have that wrong because 45 is in degrees), the maxline is 1.41 and minimum is -1.41.
Is that correct way to do it, or is there another way to simplify it?
I really don't understand the question.

Best regards.
Speed is offline  
March 5th, 2014, 09:57 AM   #2
Global Moderator
greg1313's Avatar
Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,968
Thanks: 1152

Math Focus: Elementary mathematics and beyond
Re: simplify this ?2sin(2x+45)

greg1313 is offline  
March 5th, 2014, 10:19 AM   #3
Joined: Mar 2014

Posts: 28
Thanks: 0

Re: simplify this ?2sin(2x+45)

Found the answer.. but it was rather fun to make the graph
Speed is offline  
March 5th, 2014, 12:51 PM   #4
Global Moderator
Joined: Dec 2006

Posts: 21,036
Thanks: 2274

That's probably the intended answer, but it's debatable whether it's any simpler than the original expression.
skipjack is online now  

  My Math Forum > High School Math Forum > Algebra

2sin2x, 45, simplify

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
2cos2t = 2(1-2sin^2t) yogazen2013 Algebra 5 August 6th, 2013 02:38 AM
Trig Help! Can't solve 2sin^2 x - 4sin x - 5 = 0 Higg Trigonometry 1 January 17th, 2012 11:32 PM
why is cos?x-1 = 2sin^2?x/2 ? chessy Calculus 8 February 2nd, 2011 09:31 AM
Help with : -2sin(t)+ cos(t) =0 tinyone Algebra 14 October 27th, 2010 08:38 PM
proof of sin(2x) = 2sin(x)cos(x) conjecture Algebra 1 July 17th, 2008 12:45 AM

Copyright © 2019 My Math Forum. All rights reserved.