FORMULAS Flashcards

1
Q

Binomio al cuadrado

A
(a+b)^2 = a^2+2ab+b^2
(a-b)^2 = a^2-2ab+b^2
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2
Q

Diferencia de cuadrados

A

(a-b)^2 = (a+b)(a-b)

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3
Q

Cubo de una suma

A
(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
(a-b)^3 = a^3 - 3a^2b + 3ab^2 - b^3
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4
Q

Trinomio al cuadrado

A

(a+b+c)^2 = a^2 + b^2 + c^2 + 2ab+ 2ac + 2bc

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5
Q

Suma de cubos

A

a^3 + b^3 = (a + b) · (a^2 − ab + b^2)

a^3 - b^3 = (a - b) · (a^2 + ab + b^2)

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6
Q

Cocientes notables

A
a^2-b^2/a+b = a-b
a^3-b^3/a-b = a^2+2ab+b^2
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7
Q

Área rombo

A
A= D*d/2
D = Diagonal mayor
d = diagonal menor
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8
Q

Área romboide

A

A = b*h

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9
Q

Área de un trapecio

A
A= h(B+b)/2
B = Base mayor
b = base menor
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10
Q

Área círculo

A

A = pi*r^2

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11
Q

Perímetro círculo

A

p = 2pir

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12
Q

Apotema

A

L/2*tan(ángulo/2)

LA MENOR DISTANCIA ENTRE EL CENTRO Y LOS LADOS

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13
Q

Área octágono

A

A = 4 * L * ap

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14
Q

Ángulos internos

A

180(n-2)

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15
Q

Volumen cilindro

A

V=área de la base*h

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16
Q

Área traprezoide

A

A= (b1+b2/2)*h

17
Q

Volumen cono

A

V = (1/3)área de la baseh

18
Q

Volumen esfera

A

V = 4/3 * pi * r^3

19
Q

Resta de binomios al cuadrado

A

(a+b)^2 - (a-b)^2 = 4ab

20
Q

Naturaleza de las raices

A

D = b^2 - 4ac
Si D > 0, reales y diferentes
Si D = 0, reales e iguales
Si D < 0, complejos

21
Q

Desigualdades valor absoluto

A

|x| < -a = Conjunto vacío

|x| > -a = Todos los Reales

22
Q

Varianza

A

Población:
o^2 = Sumatoria de (xi - promedio)^2 / N
Muestra:
s^2 = Sumatoria de (xi - promedio)^2 / n-1

23
Q

Datos agrupados

A

Li + (Ls-Li) (((Kn/4,10o100) - F(i-1))/Fi-F(i-1))