Given that ` tan""(pi)/(9),x,tan""(5pi)/(18)` are in A.P. Also given that `tan""(pi)/(9),y,tan""(7pi)/(18)` are in A.P. Then we have

If tan((pi)/(9)),X and tan((5 pi)/(18)) are in A.P. and tan((pi)/(9)),y and tan((7 pi)/(18)), are also in A.P,then

If tan""pi/9,x and tan""(5pi)/18 are in A.P. and tan""pi/9,y and tan""(7pi)/18 are also in A.P., then :

If tan(pi/9) , x , tan((7pi)/18) are in A.P. and tan(pi/9) , y , tan((5pi)/18) are also in A.P then find abs(x-2y)

If tan""(2pi)/(18),x andtan""(7pi)/(18) are in A.P. and tan""(2pi)/(18),t and tan""(5n)/(18) are in A.P. then the value of x/y will be

if tan( (pi)/9),x, tan ((5pi)/18) are in A.P. and tan(pi/9), y,tan ((7pi)/18) are also in A.P. then find the relation between x and y

prove: tan(pi/3),tan(pi/4),tan(pi/6) are in G.P

tan^(-1)(tan""(9pi)/(8)) ………

If X is A.M. of tan ((pi)/(9)) and tan((5 pi)/(18)) and y is A.M. of tan ((pi)/(9)) and tan((7 pi)/(18)), then