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{(1 - x)}^{- 2}

এর সাধারণ পদ কোনটি?

{(- 1)}^{r} r x^{r}

(r + 1) x^{r + 1}

(r + 1) x^{r}

{(- 1)}^{r} (r + 1) x^{r}

ANSWER : 4

Descrption

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