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Question

1+11+111+...... উপরের ধারাটির 100 তম পদ পযর্ন্ত যোগফল হবে-

\frac{10}{81}

(

10^{100}

- 1)

\frac{10}{81}

(

10^{100}

- 1) -

\frac{100}{9}

\frac{10}{9}

(

10^{100}

- 1) -

\frac{100}{9}

\frac{10}{9}

(

10^{100}

- 1) -10

ANS : 2

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