" (9) "cot A+tan(180^(@)+A)+tan(90^(@)+1)+tan(360^(@)-1)

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

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^@)

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

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

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

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

tan225^(@)=tan(180^(@)+45^(@)) =tan45^(@)=1

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))