Shena123456
Shena123456
07-07-2014
Mathematics
contestada
solve the logarithm. show steps.
Respuesta :
Аноним
Аноним
07-07-2014
[tex]log_82+log_84x^2=1;\ D:x^2 > 0\Rightarrow x\neq0\\\\log_8(2\cdot4x^2)=log_88^1\\\\log_88x^2=log_88\iff8x^2=8\ \ \ |both\ sides\ /:8\\\\x^2=1\iff x=-1\ or\ x=1.\\\\Solutions:x=-1\ \vee\ x=1.[/tex]
Answer Link
konrad509
konrad509
07-07-2014
[tex]\log_82+\log_84x^2=1\\ D:4x^2>0\\ D:x\in\mathbb{R}\\ \log_88x^2=1\\ 8^1=8x^2\\ x^2=1\\ x=-1 \vee x=1\\[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 43+ )
Otras preguntas
Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?
What was expected of the colonists through the new Quartering Act passed in 1774 as part of the Coercive Acts (Intolerable Acts)?
The Bantu migrations are most closely associated with the
what was portugal largest colony in the americas
Which sequence of y-values was formed from the function y = -2x - 9 using WHOLE numbers for x A) -13, -15, -17, -19 B) -13, -16, -19, -21 C) -11, -20, -29, -3
As American settlers moved west in search of land, many Native American nations a. formed the Indian Territory. b. settled east of the Mississippi. c. settled
a haircut is 20 sales tax is 4.75 is 25 sufficient to cover the haircut cost with tax n tip %15 tip
Which word completely describes the polygon whose vertices are the ordered pairs (1, 6), (4, 6), (4, 3), and (1, 3)?
you earn 117.60 for 14 hours of work ty earns 148.50 in 18 hours kim earns 137.60 in 16 hours how has the highest pay rate in dollars per hour.
Rubber-tipped forceps can be used to A. transport a rabbit to another cage. B. restrain a rabbit for venipuncture. C. transport a gerbil to another cage. D. re
