`(cos9^@+sin9^@)/(cos9^@-sim9^@)=` (a) `tan 54^@` (b) `tan 36^@` (d) None of these (c) `tan18^@`

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

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(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=(a)tan54^(@)(b)tan36^(@)(d) None of these (c)tan18^(@)

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

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

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

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