sum2merlilimEl
sum2merlilimEl sum2merlilimEl
  • 18-08-2016
  • Mathematics
contestada

if z^2 1/z^2= 34 find the value of z^3 1/z^3 , using only the positive value of z 1/z

Respuesta :

caylus
caylus caylus
  • 21-08-2016
Hello,

Let's assume

[tex]u=z+ \dfrac{1}{z} \\ u^2=(z+ \dfrac{1}{z} )^2=z^2+2*z* \dfrac{1}{z} + \dfrac{1}{z^2} =34+2=36\\ ==\ \textgreater \ \ u=6\\ (z+ \dfrac{1}{z} )^3=(z+ \dfrac{1}{z} )(z^2+z* \frac{1}{z} + \frac{1}{z^2} )\\ =6*(34+1)=210 [/tex]
Answer Link

Otras preguntas

Compare and contrast how to graph: x = 5 and y = –3.
i need help i have to simplify this
Thomas Paine’s Common Sense pushed for a more radical solution than the First Continental Congress did in resolving issues of British rule. What was Paine’s sol
A carp can travel at a speed of 3 7/10 miles per hour. At this rate how far can a carp travel in 2 1/2 hours?
What is the answer worked out
How many cm are in hm
Describe how to round 3.987 to the nearest tenth
Enter the correct unit of measurement to complete the conversion. 100 liters = 1 what?
If g = 77 cm and h = 85 cm, what is the length of f? A. 33 cm B. 39 cm C. 36 cm D. 115 cm
Emperor Hadrian had a wall built to separate the Romans from the Barbarians in what is now which country? A. Ireland B. Scotland C. France D. Wales