" (viii) "tan((11 pi)/(12))

tan((11pi)/12)

Evaluate(i) cos 36^(@) (ii) tan((13pi)/(12))

Prove: (ii) tan ((pi)/12) tan ((5 pi)/12) tan ((7 pi)/12) tan ((11 pi)/12) = 1

tan((pi)/(24))tan((3 pi)/(24))tan((5 pi)/(24))tan((7 pi)/(24))tan((9 pi)/ (24))tan((11 pi)/(24))tan((16 pi)/(24))

Prove that tan ((pi) / (12)) * tan (5 (pi) / (12)) * tan (7 (pi) / (12)) * tan (11 (pi) / (12)) = 1

Prove that tan (pi/12)tan((5pi)/12)tan ((7pi)/12)tan((11pi)/12)=1

Prove that "tan"(pi)/(12) "tan"(pi)/(16) "tan"(5pi)/(12)"tan"(7pi)/(16)=1

(cos ((pi) / (12)) - sin ((pi) / (12))) (tan ((pi) / (12)) + cot ((pi) / (12))) =

Evaluate (i) tan 480^(@) (ii) sin ((-11pi)/(3)) .

Find the values of the following: tan105^(@) ii.(tan(13 pi))/(12)