Logaritmos
Enviado por DenisseMV • 22 de Junio de 2015 • 470 Palabras (2 Páginas) • 103 Visitas
TRABAJO GRUPAL
(8^(X^2-4) )^(1/(X+2))= (4^((X-2)/2) )^(1/(X+2))
8^(X^2-4)=4^((X-2)/2)
2^(〖3(X〗^2-4))=2^2((X-2)/2)
De aquí: Se igualan los exponentes
〖3(X〗^2-4) = 2((X-2)/2)
3= (x-2)/(x^2-4)
3= 1/((x+2) )
3(x+2)=1
3x+6=1
3x= 1/6
x= (-5)/3
(27/8)^(x^2-1/3) (3/2)^(-3-2x)= (4/9)^(x^2-3x)
(3^3/2^3 )^(x^2-1/3) (3/2)^(-3-2x)= (2^2/3^2 )^(x^2-3x)
〖(3/2)^3(x^2-1/3) (3/2)^(- (2x+3))= 〗^ (2/3)^(〖2(x〗^2-3x))
〖(2/3)^(-3(x^2-1/3) ) (2/3)^( (2x+3) )= 〗^ (2/3)^(〖2(x〗^2-3x))
〖〖 (2/3)〗^(1-〖3x〗^2 ) (2/3)^( (2x+3) )= 〗^ (2/3)^(〖2x〗^2-6x))
〖〖 (2/3)〗^(2x-〖3x〗^2+4) = 〗^ (2/3)^(〖2x〗^2-6x))
2x-3x^2+4= 〖2x〗^2-6x
4= 〖5x〗^2-8x
x=2
5^((5x+1)/9) › (125)^((x+1)/10)
5^((5x+1)/9) › 5^3((x+1)/10)
(5x+1)/9 › 3((x+1)/10)
(5x+1)/9- 3((x+1)/10) › 0
(10x+10-27x27)/90 › 0
(23x-17)/90 › 0
23x › 17
x › 17/23
log_3x-3 log_x3+ 1/4 log_3x= log10
5/4 log_3x- 3/log_3x =1
(5/4 〖(log_3x)〗^2-3)/log_3x =1
(5〖(log_3x)〗^2-12)/(4 log_3x )=1
5〖(log_3x)〗^2-12= 4 log_3x
5〖(log_3x)〗^2-4 log_3〖x-12〗=0
5 log_3x +6
1
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