Ayuden soy botsito urgente
Respuestas a la pregunta
Explicación paso a paso:
Pregunta 1:
(x - 6)! = 1
El factorial de 0! y de 1! dan como resultado 1, entonces:
x - 6 = 0 ∨ x - 6 = 1
x = 0 + 6 x = 1 + 6
x = 6 x = 7
Los valores de x son 6 o 7 <-------------Respuesta
Pregunta 2)
E = ( 16! + 17! )/( 16! + 17! + 18! )
E = (16! + 16!x17 )/(16! + 16!x17 + 16!x17x18) //factorizamos 16!
E = 16!(1 + 17)/16!(1 + 17 + 17x18) //simplificamos 16!
E = 18/324 //Simplificamos 18ava
E = 1/18 <-------------Respuesta
Pregunta 3)
E = ( 20! + 21! + 22! )/( 20! + 21! )
E = ( 20! + 20!x21 + 20!x21x22 )/( 20! + 20!x21 ) //factorizamos 20!
E = 20!(1 + 21 + 21x22)/(20!(1 + 21)
E = 20!( 484)/20!(22) //simplificamos 20!
E = 484/22
E = 22 <-------------Respuesta
Pregunta 4)
E = [ 2! (3!)! ((4!)!)! (((5!)!)!)! ]/[ 6! ((24)!)! (((120)!)!)! ]
E = [ 2 (6!) (24!)! ((120!)!)! ]/[ 6! (24!)! ((120!)!)! ]] //Simplificamos:
E = 2 <-------------Respuesta
Pregunta (5)
E = ( 1! 2! 3! 4! 5! )/( 6! - 5!)
E = (1! 2! 3! 4! 5! )/(5!x6 - 5!) //factorizamos 5!
E = ( 1! 2! 3! 4! 5! )/5!(6 - 1) //simplificamos 5!
E = (1! 2! 3! 4! )/5
E = (1x2x6x24)/5
E = 288/5 <-------------Respuesta
Pregunta 6)
A = ( 10!x12!)/(9!x11!)
A = ( 9!x10x11!x12)/(9!x11!) //Simplificamos 9! y 11!
A = (10x12)
A = 120
B = (1!x2!x3!x4!x5! )/(6!)
B = (1!x2!x3!x4!x5! )/(5!x6) //simplificamos 5!
B = (1x2x6x24)/6
B = 288/6
B = 48
=>Nos piden A + B = 120 + 48 = 168 <-------------Respuesta
Pregunta 7)
[ (n + 3)! (n + 5)! ]/[ (n + 3)! - (n + 4)! ] = 120
[ (n + 3)! (n + 5)! ]/[ (n + 3)! - (n + 3)!(n + 4) ] = 120 //factorizamos (n + 3)!
[ (n + 3)! (n + 5)! ] /[ (n + 3)!( 1 + n + 4) ] = 120 //simplificamos (n + 3)!
(n + 5)!/(n + 5) = 120
(n + 4)!(n + 5)/(n + 5) = 120
(n + 4)! = 120
(n + 4)! = 5!
n + 4 = 5
n = 5 -4
n = 1 <-------------Respuesta
Pregunta 8)
[ n! + (n + 1)! + (n + 2)! ]/[ n! + (n + 1)! ]
[ n! + n!(n +1) + n!(n + 1)(n + 2) ]/[ n! + n!(n + 1) ] //factorizamos n!
n!( 1 + n + 1 + n² + 3n + 2)/n!(1 + n + 1) //simplificamos n!
(n² + 4n + 4)/(n + 2) // n² + 4n + 4 = (n + 2)²
(n + 2)²/(n + 2) //simplificamos n +2
n + 2 <-------------Respuesta
==============Felikin<================