If `180^@ lt theta lt 270^@,cot theta=4/3`, then `sin(theta/2)=`

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

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

I : If 180^(@) lt theta lt 270^@ , sin theta = -3//5 " then " cos theta //2 -=1//10 . II : If 630^(@) lt theta lt 720^(@) , |tan theta | =12//5 " then " tan theta//2= 2//3

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

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

If 180^(@) lt theta lt 270^(@) and sin theta = -5//13 then 5 cot^(2) theta + 12 tan theta + 13 "cosec" 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 : 0 lt theta lt pi/2 and sin 7theta + sin 4 theta + sin theta=0 , then : theta =