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

one car travels east for 360 m over a period of 15 seconds. a second car travels west for 120 m over a period of 5 seconds. what is true about their speeds? the
summary of the tell tale heart.
How many sixths are in 3 and 1 third ??
Please Help What is the domain of the function: {(1, 2); (2, 4); (3, 6); (4, 8)}?  A.{1, 2, 3, 4, 6, 8}  B.{1, 2, 3, 4}  C.{6, 8}  D.{2, 4, 6, 8}Which of the fo
The Americans with disabilities act requires that wheelchair ramps have a slope no greater than 1/12 what is the minimum horizontal length a 2 foot high ramp ca
What is another name for curl-ups? (8 letter word)
which part of the electromagnetic spectrum do plants use for photosynthesis
the volume of a cylinder is 75 pie cubic inches. yhe cylinder gas a hight of 3 inches. what is the radius of thr base of the cylinder
In a school 3/5 pupils are boys and there were 240 girls. How many boys were in the school? How many children were in total?
Are there any poisonous animals in Washington State?