tan(pi)/(10)+tan(3 pi)/(10)+tan(7 pi)/(10)+tan(9 pi)/(10)=

tan. (pi)/(10) + tan. (3pi)/(10) + tan. (7pi)/(10) + tan. (9pi)/(10) =

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

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

Fill in the blanks : "tan"(pi)/(16) "tan"(3pi)/(16)"tan"(5pi)/(16)"tan"(7pi)/(16)= _________ .

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

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))

The value of ((tan pi)/(16)+(tan(3 pi))/(16)+(tan(5 pi))/(16)+(tan(7 pi))/(16))^(2) is equal to

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))

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