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 If (1p)1+2x+4x2+8x3+16x4+32x5=1p6p1 then a value of px is 

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b
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d
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detailed solution

Correct option is B

(1−2x)1+2x+4x2+8x3+16x4+32x51-2x=1−p6(1−p)1−(2x)61−2x=1−p61−p⇒p=2x⇒px=2


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