5/28/2018 Test de Tip Cascada.

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Test de tip cascada

`Fie dat ecuaia x(2x+1)(x-2)=0

1. Determinai souiie ecuaiei.

2. !epre"entai #ra$icu $unciei $ de #radu %% asociate trinomuui de a punctu 1.

&. 'riei o ecuaie souiie caruia or $i opusee aorior ui x oinute *n punctu 2.. ,acuai $orma primitiei $unciei #(x) asociate a ecuaia din punctu &-

. ,acuai

/. Determinai oumu unui paraeipiped dreptun#ic dac se tie aoarea aturei =22 i

ceeate aori opusee souiior din exerciiu 1.

!e"oarea testuui1. x(2x+1)(x-2)=0

1=0

2x2-&x-2=0 D=2 x2=-132 x&=22. (&34-235)

&. x2

(2x-1)(x+2)=0. #(x)= x2(2x-1)(x+2)

6(x)=-2x-&x&+2x2=-23 x-&3x+23&x&+,

. =-5&/53/0

/. a=132=-2c=22=a77c

=1327(-2)722=-22

5/28/2018 Test de Tip Cascada.

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