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tan48^(@)tan23^(@)tan42^(@)tan67^(@)...

tan48^(@)tan23^(@)tan42^(@)tan67^(@)

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

Evaluate : tan7^(@)tan23^(@)tan60^(@)tan67^(@)tan83^(@)+(cot54^(@))/(tan36^(@))+sin20^(@)sec70^(@)-2

Evaluate : tan7^(@)tan23^(@)tan60^(@)tan67^(@)tan83^(@)+(cot54^(@))/(tan36^(@))+sin20^(@)sec70^(@)-2

Show that tan48^(@) tan 23^(@) tan 42^(@) tan 67^(@) =1 .

Show that tan48^(@) tan 23^(@) tan 42^(@) tan 67^(@) =1 .

Evaluate :tan7^(0)tan23^(@)tan60^(@)tan67^(0)tan83^(@)

Prove that tan12^(@)tan24^(@)tan48^(@)tan84^(@)=1

The value of tan6^(@)tan42^(@)tan66^(@)tan78^(@) is

The value of tan6^(@)tan42^(@)tan66^(@)tan78^(@) is (a) 1 (b) (1)/(2)(c)(1)/(4)(d)(1)/(8)