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Let Tr be the rth term of an A.P., for r...

Let `T_r` be the rth term of an A.P., for `r=1,2,3,` If for some positive integers `m ,n ,` we have `T_m=1/na n dT_n=1/m ,t h e nT_(m n)` equals `1/(m n)` b. `1/m+1/n` c. `1` d. `0`

A

`(mn)^(-1)`

B

`m^(-1)+nn^(-1)`

C

1

D

0

Text Solution

Verified by Experts

The correct Answer is:
C
`T_(n)=(1)/(m),T_(m)=(1)/(n)`
`implies1^(st)" term "=c.d.=(1)/(mn)`
`impliesT_(mn)=(1)/(mn)+(mn-1)/(mn)=1`
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