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February 24th, 2013, 10:38 AM  #1 
Senior Member Joined: Aug 2012 From: South Carolina Posts: 866 Thanks: 0  same but different ( variation )
Verify the identity. 8 ? 4 csc2 z = 4 ? 4 cot2 z ty forum!! 
February 24th, 2013, 11:31 AM  #2 
Global Moderator Joined: May 2007 Posts: 6,528 Thanks: 589  Re: same but different ( variation )
Looks similar to your other post. Multiply through by sin^2(z).


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