Arzeebo
Arzeebo
01-02-2016
Mathematics
contestada
x+ 1/x =5 what is the value x²+1/x²?
Respuesta :
Billymkhoi
Billymkhoi
01-02-2016
x+ 1/x= 5
⇒ (x+ 1/x)^2= 5^2
⇒ (x+ 1/x)^2= 25
⇒ x^2+ 2(x)(1/x)+ 1/x^2= 25
⇒ (x^2+ 1/x^2)+ 2*1= 25
⇒ x^2+ 1/x^2= 25 -2
⇒ x^2+ 1/x^2= 23
The final answer is 23
~
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
Benevolant A. well meaning and kindly B. rude and boring
Which best describes the outcome of the 1913 case Guinn v. U.S.? A) The case represented a failure for the NAACP because it supported a law that limited the vot
Describe the purpose and function of the writ of habeas corpus
Clearcutting is the most damaging method of deforestation because __________.
Order the numbers from least to greatest.9/5,−2.5,−1.1,−4/5, 0.8PLEASE HELP ME
Half of a number is at least 14
Can somebody solve and explain this solving for the variable question.
how do the 4 spheres interact with each other
A The Oceanic plate collides with the Continental plate and sinks into the Mantle, The heat and pressure build up then breaks down the Oceanie Plate, leading to
BiLo currently has 12-packs of Pepsi on sale for $5.55. Food Lion has a sale on 6-packs of Pepsi for $2.75. Which is the better cost per can? Show all work to b
