`tan(pi/20)tan(3pi/20)tan(5pi/20)tan(7pi/20)tan(9pi/20)` =

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 .

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 .

tan((pi)/(20))tan(3(pi)/(20))tan(5(pi)/(20))tan(7(pi)/(20))tan(9(pi)/ (20))

cot(pi/20).cot((3pi)/20)cot((5pi)/20)cot((7pi)/20)cot((9pi)/20)=....

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

(tan(pi/4)+tan(pi/6))/(1-tan(pi/4)tan(pi/6))=?

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 exact value of the expression tan((pi)/(20))-tan((3 pi)/(20))+tan((5 pi)/(20))-tan((7 pi)/(20))+tan((9 pi)/(20))