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Show that tan4 8^(@)tan16^(@)tan4 2^(@)t...

Show that `tan4 8^(@)tan16^(@)tan4 2^(@)tan7 4^(@)=1`

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Show that tan48^(@)tan16^(@)tan42^(@)tan74^(@)=1

Show that tan 48^(@) tan 16^(@) tan42^(@) tan 74^(@) =1

Show that tan 48^(@) tan 16^(@) tan 42^(@) tan 74^(@) =1

Show that tan 48^(@) tan 16^(@) tan42^(@) tan 74^(@) =1

Show that tan 48^(@) tan 16^(@)tan 42^(@) tan 74^(@) =1

Show that : tan 48^(@) tan 16^(@) tan 42^(@) tan 74^(@) = 1 .

If tan1^(@)tan2^(@)tan3^(@)tan4^(@). . .tan89^(@)=x^(2)-8 , then find the value of x.

If tan1^(@)tan2^(@)tan3^(@)tan4^(@). . .tan89^(@)=x^(2)-8 , then find the value of x.

Show that tan^(-1) (1/2) +tan^(-1) (1/8) = tan^(-1) (3/4) - tan^(-1)(1/18)

Show that tan^(-1) (1/2) +tan^(-1) (1/8) = tan^(-1) (3/4) - tan^(-1)(1/18)