1.

If p, q and r are in A.P. then which of the following are true?-

Answer»

X, y, Z are in H.P
`(1)/(x), (1)/(y), (1)/(z)` are in A.P.
x, y, z are in G.P.
`(1)/(x), (1)/(y), (1)/(z)` are in G.P.

Answer :A, B, C


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