Let T^_{r} be the r_^t_^h term of an AP for r=1,2,3,.... If for some distinct positive integers m and n we have T_m=1/n and T_n=1/m, then what is T_{mn}equal to? [NDA II 2018]

UPSC NDA II 2018 Mathematics Solved Paper

Question : 26 of 120

Marks: +1, -0

Let Tr be the rth term of an AP for r=1,2,3,.... If for some distinct positive integers m and n we have Tm=

and Tn=

, then what is Tmnequal to?

[NDA II 2018]

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