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À L'aide !exercices De 1Ère Stg


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Exo 1

1--------------------------

post-24224-0-94118600-1298235495_thumb.j

2--------------------------

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3--------------------------

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4--------------------------

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5--------------------------

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6--------------------------

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7--------------------------

post-24224-0-45369900-1298235545_thumb.j

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Exo 2

1--------------------------

7*x+4 <= -8*x-1 ==> 7*x+8*x <= -1-4 ==> 15*x <= -5 ==> x <= -5/15 ==> x <= -1/3

2--------------------------

(7*x+4) > 0 pour x > -4/7 et -8*x-1 >0 pour x < -1/8

f(x)=(7*x+4)*(-8*x-1 )

x................................(-1/8)......................(-4/7)........................

(7*x+4) .......(-)..........................(-)............(0)...........(+)...........

-8*x-1...........(+)........(0).........(-)..............................(-).............

f(x)................(-)...........(0).......(+)...............(0)...........(-)............

f(x)=(7*x+4)*(-8*x-1) >=0 pour x appartenant à [-1/8; -4/7]

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

post-24224-0-94118600-1298235495_thumb.j

post-24224-0-97689000-1298235505_thumb.j

post-24224-0-99833800-1298235513_thumb.j

post-24224-0-63321100-1298235519_thumb.j

post-24224-0-05820500-1298235531_thumb.j

post-24224-0-08298900-1298235539_thumb.j

post-24224-0-45369900-1298235545_thumb.j

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