sreesankarjayasankar sreesankarjayasankar
  • 25-03-2019
  • Mathematics
contestada

{x^{2} +1/x^{2} }=66 find x-1/x

Respuesta :

kashifsaleem931 kashifsaleem931
  • 25-03-2019

Answer:

Step-by-step explanation:

The solution is attached herewith.

Ver imagen kashifsaleem931
Answer Link
jimrgrant1 jimrgrant1
  • 25-03-2019

Answer:

x = ± 8

Step-by-step explanation:

Note that

(x - [tex]\frac{1}{x}[/tex])² = x² - 2 + [tex]\frac{1}{x^2}[/tex] = 66 - 2 = 64

Take the square root of both sides

x - [tex]\frac{1}{x}[/tex] = ± [tex]\sqrt{64}[/tex] = ± 8

Answer Link

Otras preguntas

can someone help me with this!!
Point G is on line segment FH. Given FH = 4x, GH = x, and FG = 2x + 10, determine the numerical length of FG.
Five million gallons per day (MGD) of wastewater, with a concentration of 10.0 mg/L of a conservative pollutant, is released into a stream having an upstream fl
PICTURE IS PROVIDED help me
A researcher wants to test the hypothesis that college students weigh less on average than the average American (160 lbs). The sample mean of the 80 students wh
Why did farming develop between the tigris and Euphrates River​
Value of X is A 10 B 100 C 10 radical 2 D None of the above
1/4(8x-20)=6x-1(x-25)​
What is the prime factors of the numbers 48
A liquid mixture contains water (H2O, MW = 18.0), ethanol (C2H5OH, MW = 46.0) and methanol (CH3OH, MW = 32.0). Using two different analytical techniques to anal