I actually dunno what the identities for are... but anyway, your help is greatly appreciated. When , solve Thanks!
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Originally Posted by Savior_Self I actually dunno what the identities for are... but anyway, your help is greatly appreciated. When , solve Thanks! hi
Hello Savior_Self Originally Posted by Savior_Self I actually dunno what the identities for are... There are three identities like this, and they all start with Pythagoras' Theorem: Divide both sides by : (Do you see? ... etc) Instead, divide by : Now divide by : Perhaps that will help you remember them! Grandad
Originally Posted by Grandad Hello Savior_SelfThere are three identities like this, and they all start with Pythagoras' Theorem: Divide both sides by : (Do you see? ... etc) Instead, divide by : Now divide by : Perhaps that will help you remember them! Grandad Now that's just awesome. I've never seen it explained like that before. Thanks, Grandad! I'll remember that the rest of my life.
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