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Haninrashed
@Haninrashed
May 2019
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Aidez-moi s'il vous plait. Nombre complexe niveau terminale S. Merci à celui ou celle qui m'aidera.
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scoladan
Verified answer
Bonjour,
a) x^2 + y^2 - 3y = 0
<=> x^2 + (y - 3/2)^2 = 9/4
Cercle de centre M(0;3/2) et de rayon 3/2
b) x^2 + y^2 - 4x + y - 5 = 0
<=> (x-2)^2 - 4 + (y+1/2)^2 - 1/4 - 5 = 0
<=> (x-2)^2 + (y+1/2)^2 = 37/4
Cercle de centre M(2; -1/2) et de rayon racine(37)/2
c) droite équation réduite y = 2x/5 + 3/5
d) 2x^2 + 4y - 1 = 0
<=> y = -x^2/2 + 1/4
Parabole sommet S(0,1/4)
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Lista de comentários
Verified answer
Bonjour,a) x^2 + y^2 - 3y = 0
<=> x^2 + (y - 3/2)^2 = 9/4
Cercle de centre M(0;3/2) et de rayon 3/2
b) x^2 + y^2 - 4x + y - 5 = 0
<=> (x-2)^2 - 4 + (y+1/2)^2 - 1/4 - 5 = 0
<=> (x-2)^2 + (y+1/2)^2 = 37/4
Cercle de centre M(2; -1/2) et de rayon racine(37)/2
c) droite équation réduite y = 2x/5 + 3/5
d) 2x^2 + 4y - 1 = 0
<=> y = -x^2/2 + 1/4
Parabole sommet S(0,1/4)