Prove that : `tan\ pi/7*tan\ (2pi)/7*tan\ (3pi)/7=sqrt(7)`

Show that: (tan^2\ pi/7+tan^2\ (2pi)/7+tan^2\ (3pi)/7)(cot^2\ pi/7 +cot^2\ (2pi)/7+ cot^2\ (3pi)/7)=105

Show that: (tan^2\ pi/7+tan^2\ (2pi)/7+tan^2\ (3pi)/7)(cot^2\ pi/7 +cot^2\ (2pi)/7+ cot^2\ (3pi)/7)=105

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

Prove that: tan backslash(pi)/(7)*tan backslash(2 pi)/(7)*tan backslash(3 pi)/(7)=sqrt(7)

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

The value of (1+tan\ (3pi)/8*tan\ pi/8)+(1+tan\ (5pi)/8*tan\ (3pi)/8)+(1+tan\ (7pi)/8*tan\ (5pi)/8)+(1+tan\ (9pi)/8* tan\ (7pi)/8)

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

Statement-l : tan((6pi)/7)-tan((5pi)/7)-tan(pi/7)=tan((6pi)/7).tan((5pi)/7).tan(pi/7). because Statement-2:If theta=alpha+beta, then tan theta-tan alpha-tan beta= tan theta.tanalpha. tan beta.

Find the value of tan. pi/20tan. (3pi)/20tan. (5pi)/20tan. (7pi)/20tan. (9pi)/20 .

Find the value of tan. pi/20tan. (3pi)/20tan. (5pi)/20tan. (7pi)/20tan. (9pi)/20 .