T_n

Question 4

afficher T_n

afficher les points

afficher la courbe

n = 7 (slider from 1 to 12, step 1)
liste1 = Sequence(Sequence[Polygon[(k, m), (k + 1, m), 4], k, 0, n - m - 1], m, 0, n)
a_1 = Sequence(Sum[{1, 0, k - 1}], k, 1, n)
b_1 = Sum(a_1)
C1_1 = Name(n)
A1_1 = Name(n)
B1_1 = Name(b_1)
A1 = Name(n)
C1_2 = Name(A1)
A2 = 1
B2 = 1
A3 = 2
B3 = 3
A4 = 3
B4 = 6
A5 = 4
B5 = 10
A6 = 5
B6 = 15
d = false
liste2 = Sequence(Sequence[Polygon[(n - k + 1, n - m), (n - k, n - m), 4], k, 0, n - m - 1], m, 0, n - 1)
texte1: "Utiliser le curseur n pour construire les différents nombres triangulaires. 
Ici n = " + n + ", le nombre T_{" + n + " } = " + b_1 + " est construit."
texte2: "On a emboité T_{" + n + "} avec T_{" + n + "} on obtient donc 2T_{" + n + "}=2×" + b_1 + ""
A: (A2, B2)
B: (A3, B3)
C: (A4, B4)
D: (A5, B5)
E: (A6, B6)
liste3: {A, B, C, D, E}
h = false
e = false
a = 1.4 (slider from -5 to 5, step 0.1)
b = -1.4 (slider from -5 to 5, step 0.1)
c = 2.3 (slider from -5 to 5, step 0.1)
f(x) = (a * x^(2)) + (b * x) + c
texte3: "la courbe affichée a pour équation y=" + f + ""
g = false