How to simplifiy a*sin(x)+b*cos(x)

• Subject: How to simplifiy a*sin(x)+b*cos(x)
• From: Cloud_Chu at ap.logitech.com
• Date: Fri, 5 Sep 2008 12:04:45 +0800

Hello Sir,

We are using WxMaxima 0.7.6 for solving some question. Now we want to 
change a*sin(x)+b*cos(x) into (a^2+b^2)^(1/2)*sin(x+atan(b/a)). By which 
function I can do this simplification?

Thank you and have a nice day!
Cloud

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