The value of the expression $$\cosec(85^\circ + \theta) - \sec(5^\circ - \theta) - \tan(55^\circ + \theta) + \cot(35^\circ - \theta)$$ is:
$$\cosec(85^\circ + \theta) - \sec(5^\circ - \theta) - \tan(55^\circ + \theta) + \cot(35^\circ - \theta)$$Â
=Â $$\cosec(85^\circ + \theta) - \sec(90 -Â (85^\circ + \theta)) - \tan(55^\circ + \theta) + \cot(90 -Â (55^\circ + \theta))$$Â
=Â $$\cosec(85^\circ + \theta) - \cosec(85^\circ + \theta) - \tan(55^\circ + \theta) + \tan(55^\circ + \theta) $$ Â
= 0
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