English
Hindi
8. Sequences and Series
medium

સમાંતર શ્રેણીનું $r$ મું પદ $T_r$ લો.$ r = 1, 2, 3, ….$ માટે. જો કેટલાક ધન પૂર્ણાકો $m, n$ માટે

${{\text{T}}_{\text{m}}}\,=\,\,\frac{1}{n}\,$ અને ${{\text{T}}_{\text{n}}}\,=\,\frac{\text{1}}{\text{m}}\text{,}$ હોય,તો ${{\text{T}}_{\text{mn}}}\text{ }......$

A

$\frac{1}{{mn}}$

B

$\frac{1}{m}\, + \,\,\frac{1}{n}$

C

$1$

D

$0$

Solution

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Standard 11
Mathematics

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