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The expansion of (1-x)^-2 is?...

The expansion of `(1-x)^-2` is?

A

`1-x + x ^(2-)…`

B

`1 + x+ x ^(2) + …`

C

`1 - 2x + 3x ^(2-)…`

D

`1 + 2x + 3x ^(2)+…`

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