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सिद्ध कीजिए कि : tan 9^(@) - tan 27^(@) ...

सिद्ध कीजिए कि : tan 9^(@) - tan 27^(@) - tan 63^(@) + tan 81^(@) = 4. | 12 | COMPOUND ANGLE (T...

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tan9^(@)-tan27^(@)-tan63^(@)+tan81^(@)=?

tan9^(0)-tan27^(0)-tan63^(@)+tan81^(@)

Value of tan9^@ - tan27^@ - tan63^@ + tan81^@ is ?

The value of tan 57^(@) - tan 12^(@) - tan 57^(@) tan 12^(@) is

The value of tan 9^@ - tan 27^@ - tan 63^@ + tan 81^@ is equal to:

the value of tan9^(@)-tan27^(@)-tan63^(@)+tan81^(@) is equal to