If x is AM of `tanpi/9 and tan(5pi)/18 ` and y is AM of `tha pi/9 and tan(7pi)/18` , then

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

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

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 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, 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

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

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