Question 516677
(sin &#952; + cos &#952; / cos &#952;) + (cos &#952; - sin &#952; / sin &#952;)
=(sin^2&#952;+cos&#952;sin&#952;+cos^2&#952;-sin&#952;cos&#952;)/cos&#952;sin&#952;
=(1)/cos&#952;sin&#952;
=sec&#952;cosec&#952;