asdfghjkl13
asdfghjkl13 asdfghjkl13
  • 02-05-2017
  • Mathematics
contestada

Linear equations-Transposition of formulae Why does this turn into this

Linear equationsTransposition of formulae Why does this turn into this class=

Respuesta :

LammettHash
LammettHash LammettHash
  • 02-05-2017
That's not correct. In general, you would have

[tex]x^2=\dfrac5{a^2}\implies\sqrt{x^2}=\sqrt{\dfrac5{a^2}}\implies |x|=\dfrac{\sqrt5}{\sqrt{a^2}}\implies |x|=\dfrac{\sqrt5}{|a|}[/tex]

Assuming [tex]a>0[/tex], you have [tex]|a|=a[/tex], so this turns into

[tex]|x|=\dfrac{\sqrt5}a\implies x=\pm\dfrac{\sqrt5}a[/tex]
Answer Link

Otras preguntas

3/10 and 2/5 common denominator
What is the main function of digestion?
How do I thank you for the help?
An artificial lake is in the shape of a rectangle and has same area of 9/20 square mile. The width of the lake is 1/5 the length of the lake. what are the dimen
What is a therapeutic community?
A country has a capitalist economy. Which of the following statements applies to it? A. Companies compete with each other for business. B. Employees are told w
Individuals need to adjust their physical activity to account for __________ as they age. a. reduced flexibility b. decreased energy levels c. a loss of bala
What is the slope of the line? y = -3x + 8 slope =
People who make goods and services are called _____ . consumers producers investors
What is a therapeutic community?