1.

For |x| lt 1, the (r + 1)^(th) term in the expansion of sqrt(1 - x) is

Answer»

`(1.3.5……..(2r-3))/(R!) (X/2)^r`
`-(1.3.5……..(2r-3))/(r!) (x/2)^r`
`-(1.3.5……..(2r-3))/(r!) (x)^r`
`(1.3.5……..(2r-3))/(r!) (x)^r`

ANSWER :B


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