If a,b,c,d ,e ,f are A.M.s' between 2 and 12 then find the sm a+b+c +d+e+f .

If a,b,c,d,e and f are in GP, then the value of determinant |{:(a ^(2) , d ^(2) , x), ( b ^(2) , e^(2), y) , (c^(2) , f^(2), z}| depends on a) x and y b) x and z c) y and z d) independent of x,y,z

If a, b, c are in A.P, b, c, d are in G.P. and 1/c , 1/d,1/e are in A. P . Prove that a, c, e are in G.P.

If U = {a,b,c,d,e,f,g,h}, find the complements of the following sets:B = {d,e,f,g}

If a,b,c are in A.P. b,c,d are in G.P. and 1/c,1/d,1/e are in A.P. prove that a,c,e are in G.P.

If U = {a,b,c,d,e,f,g,h}, find the complements of the following sets:C={a,c,e,g}

If U = {a,b,c,d,e,f,g,h}, find the complements of the following sets:D = {f,g,h,a}

Consider the sets U={ a,b,c,d,e,f,g } , A= {b,c,d,e } , B={a,c,g} . Find A' and B’ the verify (AbigcupB)'=A'bigcapB'

If U = {a,b,c,d,e,f,g,h}, find the complements of the following sets:A = {a,b,c}

If A/B = {a, b}, B/A = {c, d} and A cap B = {e, f} , then the set B is equal to