If ` 180^(@) lt theta lt 270^(@) and sin theta = -5//13 ` then ` 5 cot^(2) theta + 12 tan theta + 13 "cosec" theta =`

If 180^(@) lt theta lt 270^(@) , tan theta = 5//12 , " then " cos 3 theta =

If 180^(@) lt theta lt 270^(@) , sin theta =-3//5 , then cos theta //2=

If 180^@

If 180^(@) lt theta lt 270^(@), sin theta =-4//5 , " then " tan theta //2=

If 90^(@) lt theta lt 180^(@) , cos theta =-12//13 , then sin 2 theta =

If 270^(@) lt theta lt 360^(@) and cos theta = (5)/(13) " then " (13 sin theta + 5 tan theta )/( 12 cot theta - 5 sec theta )=

If sin theta = (-5)/(13) and theta in Q_(3) , then P.T. 5cot^(2)theta+12tan theta + 13 cosec theta=0 .

If 180^(@)ltthetalt270^(@),tan theta=5/12 ,then cos3 theta=