Identities For Negatives

	$\displaystyle \sin(-x)= -\sin x$		$\displaystyle \cos(-x)=\cos x$
	$\displaystyle \csc(-x)= -\csc x$		$\displaystyle \tan(-x)= -\tan x$
	$\displaystyle \sec(-x)=\sec x$		$\displaystyle \cot(-x)= -\cot x$