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Sequences and Series question

2004 · Shift 0 · Q94

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JEE Main
Mathematics
Sequences and Series
2004 · Shift 0 · Q94

Sequences and Series question

2004 · Shift 0 · Q94

JEE MainMathematicsSequences and SeriesMCQ+4 / −1

Let

{{T_r}}

be the rth term of an A.P. whose first term is a and common difference is d. If for some positive integers m, n,

m e n,\,\,{T_m} = {1 \over n}\,\,and\,{T_n} = {1 \over m},\,

then a - d equals

A
${1 \over m} + {1 \over n}$
B
1
C
${1 \over {m\,n}}$
D
0

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