`( sin (270^@ + x) cos^3 (720^@ -x) - sin(270^@-x) sin^3(540^@ +x))/(sin(90^@+x) sin(-x) - cos^2(180^@-x))+ cot(270^@ -x)/cosec^2(450^@ +x)`

(sin(270^(@)+x)cos^(3)(720^(@)-x)-sin(270^(@)-x)sin^(3)(540^(@)+x))/(sin(90^(@)+x)sin(-x)-cos^(2)(180^(@)-x))+(cot(270^(@)-x))/(cos e)c^(2)(450^(@)+x)

cos A + sin(270^(@) +A)-sin(270^(@)-A)+ cos(180^(@)-A)=

cos A + sin (270 ^ (@) + A) -sin (270 ^ (@) - A) + cos (180 ^ (@) + A) = 0

If sin(270^(@) - x) = cos 292^(@) , then find x in (0, 360^(@))

cosA+sin(270^(@)+A)-sin(270^(@)-A)+cos(180^(@)+A)=?

(sin x - sin 3x)/( sin ^(2) x - cos ^(2) x) = 2 sin x

(sin x - sin 3x)/( sin ^(2) x - cos ^(2) x) = 2 sin x

(sin x - sin 3x)/( sin ^(2) x - cos ^(2) x) = 2 sin x

Prove that (sin 3x - sin x) /( cos x - cos 3x) = cot 2x