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Safaa59860
@Safaa59860
April 2019
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E= 5(Y+4)-6y2
calculer E pour y= -1 puis pour y=2.5
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calculer E pour y=2.5
E= 5(y+4)-6y²
=5*6,5-6*6,25
=
-5
calculer E pour y= -1
E= 5(y+4)-6y²
=5*3-6
=9
0 votes
Thanks 1
shanaclaes98
E = 5(y+4)-6y²
y=-1
5(-1+4)-6(-1)²
= 5(3)-6(1)
=15-6=9
y=2,5
5(2,5+4)-6(2,5)²
= 5(6,5)-6(6,25)
= 32,5-37,5=-5
2 votes
Thanks 1
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E= 5(y+4)-6y²
=5*6,5-6*6,25
=-5
calculer E pour y= -1
E= 5(y+4)-6y²
=5*3-6
=9
y=-1
5(-1+4)-6(-1)²
= 5(3)-6(1)
=15-6=9
y=2,5
5(2,5+4)-6(2,5)²
= 5(6,5)-6(6,25)
= 32,5-37,5=-5