If n(G) = 20, n(H) = 32 and G n H = O/, then N(G uu H) =

If n(A) = 20, n(B) = 28 and n (A uu B) = 36, then n(A nn B) = ?

If n(A) = 20, n(A uu B) = 36, n(B) = 28 then find n(A nn B) .

If H is the H.M between a and b, then 1 / (H - a) + 1 / (H- b) mth term of a H.P is n and the nth term is m then its (m + n) therm is

If M sube N, then (M uu N) uu (M nn N) =

For a G. P. a = 3, r = 2, S _(n) = 765, find n.