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Let Tr denote the rth term of a G.P. for...

Let `T_r` denote the rth term of a G.P. for `r=1,2,3,` If for some positive integers ` ma n d n ,` we have `T_m=1//n^2` and `T_n=1//m^2` , then find the value of `T_(m+n//2.)`

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