My Math Forum Trig Identities Question

 Trigonometry Trigonometry Math Forum

 October 22nd, 2017, 06:21 PM #1 Newbie   Joined: Oct 2017 From: Redlands, CA Posts: 15 Thanks: 0 Trig Identities Question Could someone please explain to me how: 16(sin^2 theta) = 15 (sin^2 theta) + sin ^2 theta I know it has to do with an algebraic manipulation using the Pythagorean identity of: sin^2 theta + cos^2 theta = 1 But I just can't wrap my head around what happens to get the extra sin^2 theta. Thanks in advance for your help. Last edited by skipjack; October 22nd, 2017 at 07:18 PM.
 October 22nd, 2017, 06:55 PM #2 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,881 Thanks: 1088 Math Focus: Elementary mathematics and beyond 16 = 15 + 1 Thanks from topsquark and JPow
 October 22nd, 2017, 09:15 PM #3 Newbie   Joined: Oct 2017 From: Redlands, CA Posts: 15 Thanks: 0 Ohhh... 15x+1x=16x Thanks. I was completely overthinking it.

 Tags identities, question, trig

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post harissia Trigonometry 3 November 16th, 2015 09:15 AM harissia Trigonometry 3 November 15th, 2015 01:31 PM cheyb93 Calculus 1 March 1st, 2013 09:45 PM jmhelp Trigonometry 4 May 26th, 2011 09:23 PM xosarah Algebra 1 April 17th, 2010 06:09 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top