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" Prove that "(cos9^(@)+sin9^(@))/(cos9^...

" Prove that "(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=cot36^(@)

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" Prove that "(cos9^(0)+sin9^(0))/(cos9^(0)-sin9^(0))=cot36^(@)

(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=tan54^(@)

(cos9^(@) + sin 9^(@))/(cos9^(@) - sin9^(@))=

Prove : (cos 9^(@) +sin9^(@))/(cos9^(@) - sin9^(@)) = tan54^(@)

Prove that (cos 9^(@)+ sin 9^(@))/(cos 9^(@) -sin 9^(@)) = tan 54^(@)

Prove that (cos 9^(@)+ sin 9^(@))/(cos 9^(@) -sin 9^(@)) = tan 54^(@)

Prove that (cos9^@+sin9^@)/(cos9^@-sin9^@)=tan54^@

Prove that tan54^@=(cos9^@+sin9^@)/(cos9^@-sin9^@)

cos 9^(@) - sin 9^(@)=

(cos 9^(@) + sin 9^(@))/(cos 9^(@) - sin 9^(@)) equals