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

Find the exact value of the expression 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 .

tan((11pi)/12)

Evaluate : tan ""(pi )/(12) .tan ""( pi )/(16) .tan ""(5pi )/(12) .tan ""( 7pi )/(16)

Evaluate : "tan"(2pi)/(9)+"tan"(pi)/(9) + sqrt(3) "tan"(2pi)/(9) "tan"(pi)/(9)

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)

The absolute value of the expression tan(pi/(16))+tan((5pi)/(16))+tan((9pi)/(16))+tan((13pi)/(16)) is ______

tan""(2pi)/(5)-tan""(pi)/(15)-sqrt3tan""(2pi)/(5)tan""(pi)/(15) is equal to

tan""(2pi)/(5)-tan""(pi)/(15)-sqrt3tan""(2pi)/(5)tan""(pi)/(15) is equal to

int_0^pi||sinx|-|cosx||dx is equal to (a) tan((3pi)/8) (b) tan(pi/8) (c) 4 tan(pi/8) (d) 2 tan((3pi)/8)