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

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

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

Prove that: tan(-225^(@))cot(-405^(@))-tan(-765^(@))cot(675^(@))=0

Tan585^(@)Cot405^(@)+Tan675^(@)Cot765^(@)=

Prove that tan225^@ cot405^@+tan675^@ cot315^@=2

Prove that: tan(-225^0)cot(-405^0)-tan(-765^0)cot(675^0)=0

(tan225^(@)-cot81^(@)cot69^(@))/(cot261^(@)+tan21^(@))

tan 585^(@) * cot 405^(@) + tan 675^(@) * cot 765^(@)=

Evaluate each of the following: cot12^(@)cot38^(@)cot52^(@)cot60^(@)cot78^(@)tan5^(@)tan25^(@)tan30^(@)tan65^(@)tan85^(@)

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