[tan A+cot(180^(@)+A)+cot(90^(@)+A)+],[cot(360^(@)-A)]

tanA+tan(180^(@)+A)+cot(90^(@)+A)+cot(360^(@)-A)=?

tanA+cot(180^@+A)+cot(90^@+A)+cot(360^@-A)=

cot A+tan(180^(@)-A)+tan(90^(@)+A)+tan(360^(@)+A)=0

(cos(180^(@)-A)*cot(90^@+A)*cos(-A))/(tan(180^(@)+A) tan(270^(@) +A)* sin(360^(@)-A))=

tanA+cot(180^0+A)+cot(90^0+A)+cot(360^0-A)= ............... A) 0 B) 2 tan A C) 2 cot A D) 2(tan A-cot A)

Simplify : ("sec"(270^@ - A) "sec"(90^@ - A) - tan (270^@ -A) tan (90^@ + A))/(cot A + tan (180^@ + A) + tan (90^@ + A) + tan (360^@ - A) + cos 180^@)

Show that: (cot 30^(@) cot 60^(@) - 1)/(cot 30^(@) + cot 60^(@)) = cot 90^(@)

Simplify the following: (i) "sin"(90^(@)+theta)"tan"(270^(@)+theta)cot(90^(@)+theta) cosec(270^(@)+theta) (ii) ("sin"(-theta)"tan"(180^(@)+theta)"tan"(90^(@)+theta))/(cot(90^(@)-theta)cos(360^(@)-theta)"sin"(180^(@)-theta))