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

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

If 180^(@)

If sin theta=-4/5,180^(@)ltthetalt270^(@) then find "sin"theta/2, "cos"theta/2

If 180^(@)