June 16th, 2017, 05:12 AM  #1 
Senior Member Joined: May 2014 From: Allentown PA USA Posts: 107 Thanks: 6 Math Focus: dynamical systen theory  A verification problem
Dear MyMathForum Community: How do you verify the following? (tan^2) x * (sin^2) x = (tan^2) x + (cos^2) x  1. Thank you. Best regards, Carl Mesaros 
June 16th, 2017, 05:32 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 18,953 Thanks: 1599 
tan²x * sin²x = tan²x * (1  cos²x) = tan²x  sin²x = tan²x + cos²x  1

June 17th, 2017, 06:29 AM  #3 
Senior Member Joined: May 2014 From: Allentown PA USA Posts: 107 Thanks: 6 Math Focus: dynamical systen theory  A Thank you
Dear skipjack: Thank you for the answer to this thread. Ah, so many times I cannot see the forest for the trees! Best regards, Carl Mesaros 

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