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निम्न के मान ज्ञात कीजिए- (sin 15^(@)cos...

निम्न के मान ज्ञात कीजिए- `(sin 15^(@)cos 75^(@)+cos15^(@)sin 75^(@))/(tan 5^(@)tan 30^(@)tan 35^(@)tan55^(@)tan 85^(@)).`

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tan15^(@) + tan 75^(@)=

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

Find tan15^(@).tan25^(@).tan45^(@).tan65^(@).tan75^(@) .

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

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The value of tan10^(@)tan15^(@)tan75^(@)tan80^(@) is

Evaluate : (sin 35^(@) cos 55^(@) + cos 35^(@) sin 55^(@))/ (cosec^(2) 10^(@) - tan^(2) 80^(@))