Plz solve 24 one. 22. If x be the AM and z
is equal to-
are in AP. then a2,b2 c2 will
1
b+c c + a'a+b
be in-
(4) None of these
24. If sum of A.M. and H.M between two positive
numbers is 25 and their GM is 12, then sum Of
numbers is-
(3) 32
(2) 18
(4) 18 or 32
25. Find the sum of the series up to n term
1.3.5 + 3.5.7 + 5.7.9
(1) 8n3 + 12n2 — 2n — 3
(2) n(8n3 + 11n2 —
(3) n(2n3 + 8n2 + 7n — 2)
(4) none of these
.26