" iil tan "71-cot19^(@)=0

Prove that tan 225^(@) cot 405^(@)+tan 765^(@) cot 675^(@)=0.

Prove that : tan 225^@ cot 405^@+ tan 765^@ cot 675^@=0

tan225^(@)cot405^(@)+tan765^(@)cot675^(@)=0

Prove that tan225^(@)cot405^(@)+tan765^(@)cot675^(@)=0

Find the value of (cot 25^(@)+cot 55^(@))/(tan 25^(@)+tan55^(@))+(cot 55^(@)+cot 100^(@))/(tan 55^(@)+tan 100^(@))+(cot 100^(@)+cot 25^(@))/(tan 100^(@)+tan 25^(@))

The value of cot7(1^0)/2+tan67(1^(@))/2-cot67(1^(@))/2-tan7(1^0)/2 is

sqrt(3)(tan11^(@)+tan19^(@))+tan11^(@)tan19^(@)=

" If tan35^(0)+cot37^(0)+tan325^(@)=x tan53^(0)+tan127^(0) then x=

Prove that: tan225^(@)cot405^(@)+tan765^(@)cot675^(0)=0

Find the value of (cot25^(@)+cot55^(@))/(tan25^(@)+tan55^(@))+(cot55^(@)+cot100^(@))/(tan55^(@)+tan100^(@))+(cot100^(@)+cot25^(@))/(tan100^(@)+tan25^(@))