1.

If \[{{t}_{n}}\] denotes the nth term of a G.P. whose common ratio is r, then the progression whose nth term is \[\frac{1}{t_{n}^{2}+t_{n+1}^{2}}\] is

A. A.P.
B. G.P.
C. H.P.
D. None of these
Answer» C. H.P.


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