If `H_1, H_2, ,H_(20)a r e20` harmonic means between 2 and 3, then `(H_1+2)/(H_1-2)+(H_(20)+3)/(H_(20)-3)=` a. 20 b.21 c. 40 d. 38

If H_1.,H_2,…,H_20 are 20 harmonic means between 2 and 3, then (H_1+2)/(H_1-2)+(H_20+3)/(H_20-3)=

If H_(1),H_(2)…H_(4) be (n-1) harmonic means between a and b, then (H_(1)+a)/(H_(1)-a)+(H_(n-1)+b)/(H_(n-1)-b) is equal to

If H be the harmonic mean between x and y, then show that (H+x)/(H-x)+(H+y)/(H-y)=2

8.If H1,H2,......, H2010are 2010 harmonic means between a and b(#a) ,then value of (H_(1)+a)/(H1-a)+(H_(2010)+b)/(H_(2010)-b) is equal to

If H_(1).H_(2)....,H_(n) are n harmonic means between a and b(!=a), then the value of (H_(1)+a)/(H_(1)-a)+(H_(n)+b)/(H_(n)-b)=

If the harmonic mean between a and b be H, then the value of (1)/(H-a)+(1)/(H-b) is-

H_(1),H_(2) are 2H.M.' s between a,b then (H_(1)+H_(2))/(H_(1)*H_(2))