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" (ix) "2^(" th ")" ans "^(" tan ")" tan...

" (ix) "2^(" th ")" ans "^(" tan ")" tan "25" tan "30" tan "65" 'tan "85^(@)" ."

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The value of tan 15^@ tan 25^@ tan 45^@ tan 65^@ tan 75^@ is

tan 75 ^(@) - tan 30^(@)- tan 75^(@) tan 30^(@) =1.

tan 5^@ xx tan 30^@ xx 4 tan 85^@ =………

tan 75^(@) - tan 30^@ - tan 75^(@) * tan 30^*(@) =

tan10^(@) tan 20^(@) tan 30^(@) tan 40^(@) tan 50^(@) tan 60^(@) tan 70^(@) tan 80^(@)=

Prove that: tan 5° tan 85° tan 30° tan 65° tan 25° = 1/sqrt 3 .

Evaluate : tan 35^(@) tan 60^(@) tan 30^(@) tan65 .

Evaluate the ((3 cos 43^(@))/(sin 47^(@)))^(2) - (cos 37^(@) "cosec" 53^(@))/(tan 5^(@) tan 25^(@) tan 45^(@) tan 65^(@) tan 85^(@))