ams080a-class15

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  • 8/12/2019 ams080a-class15

    1/6

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    2 1

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    A , A. ,

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    . 2 A (

    / B 1 p). 1 :

    1 1

    , 0 p+10 (1 p) =1010p

    , 5 p+0 (1 p) = 5p

    , 1 2

    5p =10 10p 15p =10 p =

    10

    15 =

    2

    3

    1 10p = 103 . ,

    1 ,

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    2 2

    A, 0 q+10 (1q) =1010q

    B, 5

    q+0 (1

    q) = 5

    q

    , , q = 23 , 2 10

    3.

    . 1

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    , 103). , 103

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    100

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    , (,

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    , 99%

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    1 1

    , 0 p+ (1) (1 p) = p 1

    , 1 p+ (100) (1 p) =101p 100

    ,

    p 1 =101p 100 99 = 100p p =99

    100

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    B , .

    1 p =199

    100=

    1

    100 .

    .